397041984 has 42 divisors (see below), whose sum is σ = 1138050810. Its totient is φ = 132347136.

The previous prime is 397041979. The next prime is 397041989. The reversal of 397041984 is 489140793.

It is an interprime number because it is at equal distance from previous prime (397041979) and next prime (397041989).

It can be written as a sum of positive squares in only one way, i.e., 294465600 + 102576384 = 17160^2 + 10128^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397041989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344079 + ... + 345230.

Almost surely, 2^397041984 is an apocalyptic number.

It is an amenable number.

397041984 is an abundant number, since it is smaller than the sum of its proper divisors (741008826).

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

397041984 is a wasteful number, since it uses less digits than its factorization.

397041984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689327 (or 689314 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 397041984 is about 19925.9123755978. The cubic root of 397041984 is about 734.9855668414.

It can be divided in two parts, 3970 and 41984, that added together give a palindrome (45954).

The spelling of 397041984 in words is "three hundred ninety-seven million, forty-one thousand, nine hundred eighty-four".