38428137 has 12 divisors (see below), whose sum is σ = 60553584. Its totient is φ = 23289720.

The previous prime is 38428133. The next prime is 38428157. The reversal of 38428137 is 73182483.

It is not a de Polignac number, because 38428137 - 2² = 38428133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38428133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193983 + ... + 194180.

It is an arithmetic number, because the mean of its divisors is an integer number (5046132).

Almost surely, 2^38428137 is an apocalyptic number.

It is an amenable number.

38428137 is a deficient number, since it is larger than the sum of its proper divisors (22125447).

38428137 is a wasteful number, since it uses less digits than its factorization.

38428137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388180 (or 388177 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 38428137 is about 6199.0432326287. The cubic root of 38428137 is about 337.4554476170.

The spelling of 38428137 in words is "thirty-eight million, four hundred twenty-eight thousand, one hundred thirty-seven".