397022445 has 16 divisors (see below), whose sum is σ = 705817920. Its totient is φ = 211745232.

The previous prime is 397022429. The next prime is 397022459. The reversal of 397022445 is 544220793.

397022445 is a `hidden beast` number, since 397 + 0 + 224 + 45 = 666.

It is not a de Polignac number, because 397022445 - 2⁴ = 397022429 is a prime.

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, 1470319 + ... + 1470588.

It is an arithmetic number, because the mean of its divisors is an integer number (44113620).

Almost surely, 2^397022445 is an apocalyptic number.

It is an amenable number.

397022445 is a deficient number, since it is larger than the sum of its proper divisors (308795475).

397022445 is a wasteful number, since it uses less digits than its factorization.

397022445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940921 (or 2940915 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 397022445 is about 19925.4220783400. The cubic root of 397022445 is about 734.9735100824.

The spelling of 397022445 in words is "three hundred ninety-seven million, twenty-two thousand, four hundred forty-five".