1397630400 has 84 divisors (see below), whose sum is σ = 4585408152. Its totient is φ = 372700160.

The previous prime is 1397630387. The next prime is 1397630407. The reversal of 1397630400 is 40367931.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397630407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140787 + ... + 150386.

Almost surely, 2^1397630400 is an apocalyptic number.

1397630400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397630400 is an abundant number, since it is smaller than the sum of its proper divisors (3187777752).

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

1397630400 is a wasteful number, since it uses less digits than its factorization.

1397630400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291198 (or 291183 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 1397630400 is about 37384.8953455804. The cubic root of 1397630400 is about 1118.0574320084.

The spelling of 1397630400 in words is "one billion, three hundred ninety-seven million, six hundred thirty thousand, four hundred".