1372401616 has 20 divisors (see below), whose sum is σ = 2798977600. Its totient is φ = 650084832.

The previous prime is 1372401599. The next prime is 1372401617. The reversal of 1372401616 is 6161042731.

It is a super-2 number, since 2×1372401616² = 3766972391198822912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372401617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2256936 + ... + 2257543.

It is an arithmetic number, because the mean of its divisors is an integer number (139948880).

Almost surely, 2^1372401616 is an apocalyptic number.

1372401616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1372401616 is an abundant number, since it is smaller than the sum of its proper divisors (1426575984).

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

1372401616 is a wasteful number, since it uses less digits than its factorization.

1372401616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514506 (or 4514500 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1372401616 is about 37045.9392646482. The cubic root of 1372401616 is about 1111.2891485316.

The spelling of 1372401616 in words is "one billion, three hundred seventy-two million, four hundred one thousand, six hundred sixteen".