38988428 has 24 divisors (see below), whose sum is σ = 69336960. Its totient is φ = 19180800.

The previous prime is 38988413. The next prime is 38988431. The reversal of 38988428 is 82488983.

It is a super-3 number, since 3×38988428³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97028 + ... + 97428.

It is an arithmetic number, because the mean of its divisors is an integer number (2889040).

Almost surely, 2^38988428 is an apocalyptic number.

It is an amenable number.

38988428 is a deficient number, since it is larger than the sum of its proper divisors (30348532).

38988428 is a wasteful number, since it uses less digits than its factorization.

38988428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 735 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 38988428 is about 6244.0714281629. The cubic root of 38988428 is about 339.0875998734.

The spelling of 38988428 in words is "thirty-eight million, nine hundred eighty-eight thousand, four hundred twenty-eight".