1347639552 has 432 divisors, whose sum is σ = 4865374080. Its totient is φ = 366170112.

The previous prime is 1347639551. The next prime is 1347639563. The reversal of 1347639552 is 2559367431.

1347639552 is a `hidden beast` number, since 1 + 3 + 4 + 7 + 639 + 5 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×1347639552² = 3632264724229521408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1347639498 and 1347639507.

It is not an unprimeable number, because it can be changed into a prime (1347639551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7789738 + ... + 7789910.

It is an arithmetic number, because the mean of its divisors is an integer number (11262440).

Almost surely, 2^1347639552 is an apocalyptic number.

1347639552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1347639552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2432687040).

1347639552 is an abundant number, since it is smaller than the sum of its proper divisors (3517734528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1347639552 is a wasteful number, since it uses less digits than its factorization.

1347639552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 208 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 1347639552 is about 36710.2104597617. The cubic root of 1347639552 is about 1104.5649282623.

The spelling of 1347639552 in words is "one billion, three hundred forty-seven million, six hundred thirty-nine thousand, five hundred fifty-two".