397372416 has 176 divisors, whose sum is σ = 1282830336. Its totient is φ = 106758144.

The previous prime is 397372379. The next prime is 397372463. The reversal of 397372416 is 614273793.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (190512) is a multiple of the sum of its prime factors (1134).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365025 + ... + 366111.

Almost surely, 2^397372416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397372416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641415168).

397372416 is an abundant number, since it is smaller than the sum of its proper divisors (885457920).

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

397372416 is a wasteful number, since it uses less digits than its factorization.

397372416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1116 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 397372416 is about 19934.2021661264. The cubic root of 397372416 is about 735.1894037309.

The spelling of 397372416 in words is "three hundred ninety-seven million, three hundred seventy-two thousand, four hundred sixteen".