397453212 has 72 divisors (see below), whose sum is σ = 1092205296. Its totient is φ = 121135104.

The previous prime is 397453163. The next prime is 397453241. The reversal of 397453212 is 212354793.

397453212 is a `hidden beast` number, since 397 + 4 + 53 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46108 + ... + 54044.

It is an arithmetic number, because the mean of its divisors is an integer number (15169518).

Almost surely, 2^397453212 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 397453212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546102648).

397453212 is an abundant number, since it is smaller than the sum of its proper divisors (694752084).

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

397453212 is a wasteful number, since it uses less digits than its factorization.

397453212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8067 (or 8062 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 397453212 is about 19936.2286303102. The cubic root of 397453212 is about 735.2392279724.

The spelling of 397453212 in words is "three hundred ninety-seven million, four hundred fifty-three thousand, two hundred twelve".