938428 has 12 divisors (see below), whose sum is σ = 1650040. Its totient is φ = 466992.

The previous prime is 938393. The next prime is 938437. The reversal of 938428 is 824839.

It is a super-2 number, since 2×938428² = 1761294222368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 938393 and 938402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718 + ... + 1546.

2⁹³⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

938428 is a deficient number, since it is larger than the sum of its proper divisors (711612).

938428 is a wasteful number, since it uses less digits than its factorization.

938428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1114 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 938428 is about 968.7249351596. The cubic root of 938428 is about 97.9039736879.

The spelling of 938428 in words is "nine hundred thirty-eight thousand, four hundred twenty-eight".