1478369772 has 288 divisors, whose sum is σ = 4504550400. Its totient is φ = 418239360.

The previous prime is 1478369741. The next prime is 1478369773. The reversal of 1478369772 is 2779638741.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1478369773) 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, 17811643 + ... + 17811725.

It is an arithmetic number, because the mean of its divisors is an integer number (15640800).

Almost surely, 2^1478369772 is an apocalyptic number.

1478369772 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 1478369772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2252275200).

1478369772 is an abundant number, since it is smaller than the sum of its proper divisors (3026180628).

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

1478369772 is a wasteful number, since it uses less digits than its factorization.

1478369772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 175 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 1478369772 is about 38449.5744059671. The cubic root of 1478369772 is about 1139.1852627362.

The spelling of 1478369772 in words is "one billion, four hundred seventy-eight million, three hundred sixty-nine thousand, seven hundred seventy-two".