397041630 has 32 divisors (see below), whose sum is σ = 1008954144. Its totient is φ = 99649536.

The previous prime is 397041611. The next prime is 397041637. The reversal of 397041630 is 36140793.

It is a junction number, because it is equal to n+sod(n) for n = 397041591 and 397041600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397041637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388747 + ... + 389766.

It is an arithmetic number, because the mean of its divisors is an integer number (31529817).

Almost surely, 2^397041630 is an apocalyptic number.

397041630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397041630 is an abundant number, since it is smaller than the sum of its proper divisors (611912514).

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

397041630 is a wasteful number, since it uses less digits than its factorization.

397041630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778540.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 397041630 is about 19925.9034926901. The cubic root of 397041630 is about 734.9853484052.

The spelling of 397041630 in words is "three hundred ninety-seven million, forty-one thousand, six hundred thirty".