38447432 has 8 divisors (see below), whose sum is σ = 72088950. Its totient is φ = 19223712.

The previous prime is 38447429. The next prime is 38447441. The reversal of 38447432 is 23474483.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 81796 = 6194^2 + 286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 38447392 and 38447401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2402957 + ... + 2402972.

Almost surely, 2^38447432 is an apocalyptic number.

It is an amenable number.

38447432 is a deficient number, since it is larger than the sum of its proper divisors (33641518).

38447432 is a wasteful number, since it uses less digits than its factorization.

38447432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805935 (or 4805931 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 38447432 is about 6200.5993258717. The cubic root of 38447432 is about 337.5119176404.

The spelling of 38447432 in words is "thirty-eight million, four hundred forty-seven thousand, four hundred thirty-two".