397052288 has 16 divisors (see below), whose sum is σ = 791002860. Its totient is φ = 198526080.

The previous prime is 397052269. The next prime is 397052317. The reversal of 397052288 is 882250793.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550858 + ... + 1551113.

Almost surely, 2^397052288 is an apocalyptic number.

It is an amenable number.

397052288 is a deficient number, since it is larger than the sum of its proper divisors (393950572).

397052288 is an equidigital number, since it uses as much as digits as its factorization.

397052288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101985 (or 3101973 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 397052288 is about 19926.1709317169. The cubic root of 397052288 is about 734.9919248808.

The spelling of 397052288 in words is "three hundred ninety-seven million, fifty-two thousand, two hundred eighty-eight".