397736400 has 60 divisors (see below), whose sum is σ = 1274086112. Its totient is φ = 106062720.

The previous prime is 397736393. The next prime is 397736411. The reversal of 397736400 is 4637793.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164524 + ... + 166923.

Almost surely, 2^397736400 is an apocalyptic number.

397736400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397736400 is an abundant number, since it is smaller than the sum of its proper divisors (876349712).

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

397736400 is a wasteful number, since it uses less digits than its factorization.

397736400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331468 (or 331457 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 397736400 is about 19943.3297119613. The cubic root of 397736400 is about 735.4138074274.

The spelling of 397736400 in words is "three hundred ninety-seven million, seven hundred thirty-six thousand, four hundred".