38400464 has 20 divisors (see below), whose sum is σ = 74836356. Its totient is φ = 19087872.

The previous prime is 38400443. The next prime is 38400491. The reversal of 38400464 is 46400483.

It can be written as a sum of positive squares in 2 ways, for example, as 27457600 + 10942864 = 5240^2 + 3308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4169 + ... + 9704.

Almost surely, 2^38400464 is an apocalyptic number.

It is an amenable number.

38400464 is a deficient number, since it is larger than the sum of its proper divisors (36435892).

38400464 is a wasteful number, since it uses less digits than its factorization.

38400464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14054 (or 14048 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 38400464 is about 6196.8107926578. The cubic root of 38400464 is about 337.3744249790.

The spelling of 38400464 in words is "thirty-eight million, four hundred thousand, four hundred sixty-four".