397063620 has 120 divisors (see below), whose sum is σ = 1255782528. Its totient is φ = 105019200.

The previous prime is 397063619. The next prime is 397063649. The reversal of 397063620 is 26360793.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 211285 + ... + 213155.

Almost surely, 2^397063620 is an apocalyptic number.

397063620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397063620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627891264).

397063620 is an abundant number, since it is smaller than the sum of its proper divisors (858718908).

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

397063620 is a wasteful number, since it uses less digits than its factorization.

397063620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 397063620 is about 19926.4552793516. The cubic root of 397063620 is about 734.9989171163.

The spelling of 397063620 in words is "three hundred ninety-seven million, sixty-three thousand, six hundred twenty".