397674744 has 64 divisors (see below), whose sum is σ = 1078388640. Its totient is φ = 121712640.

The previous prime is 397674743. The next prime is 397674749. The reversal of 397674744 is 447476793.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397674743) 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, 4842 + ... + 28614.

Almost surely, 2^397674744 is an apocalyptic number.

397674744 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397674744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539194320).

397674744 is an abundant number, since it is smaller than the sum of its proper divisors (680713896).

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

397674744 is a wasteful number, since it uses less digits than its factorization.

397674744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23840 (or 23836 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 51.

The square root of 397674744 is about 19941.7838720612. The cubic root of 397674744 is about 735.3758048568.

The spelling of 397674744 in words is "three hundred ninety-seven million, six hundred seventy-four thousand, seven hundred forty-four".