397511424 has 108 divisors (see below), whose sum is σ = 1177352176. Its totient is φ = 128894976.

The previous prime is 397511399. The next prime is 397511449. The reversal of 397511424 is 424115793.

It is an interprime number because it is at equal distance from previous prime (397511399) and next prime (397511449).

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 11 ways as a sum of consecutive naturals, for example, 82917 + ... + 87579.

Almost surely, 2^397511424 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 397511424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588676088).

397511424 is an abundant number, since it is smaller than the sum of its proper divisors (779840752).

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

397511424 is a wasteful number, since it uses less digits than its factorization.

397511424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722 (or 4705 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 397511424 is about 19937.6885320240. The cubic root of 397511424 is about 735.2751212174.

The spelling of 397511424 in words is "three hundred ninety-seven million, five hundred eleven thousand, four hundred twenty-four".