1477349640 has 384 divisors, whose sum is σ = 5660928000. Its totient is φ = 330670080.

The previous prime is 1477349603. The next prime is 1477349647. The reversal of 1477349640 is 469437741.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1477349647) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2466061 + ... + 2466659.

It is an arithmetic number, because the mean of its divisors is an integer number (14742000).

Almost surely, 2^1477349640 is an apocalyptic number.

1477349640 is a gapful number since it is divisible by the number (10) 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 1477349640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830464000).

1477349640 is an abundant number, since it is smaller than the sum of its proper divisors (4183578360).

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

1477349640 is a wasteful number, since it uses less digits than its factorization.

1477349640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 1477349640 is about 38436.3062741466. The cubic root of 1477349640 is about 1138.9231752288.

The spelling of 1477349640 in words is "one billion, four hundred seventy-seven million, three hundred forty-nine thousand, six hundred forty".