38658970 has 16 divisors (see below), whose sum is σ = 79527168. Its totient is φ = 13254480.

The previous prime is 38658959. The next prime is 38658979. The reversal of 38658970 is 7985683.

It is a super-2 number, since 2×38658970² = 2989031922921800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38658970.

It is not an unprimeable number, because it can be changed into a prime (38658979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276066 + ... + 276205.

It is an arithmetic number, because the mean of its divisors is an integer number (4970448).

Almost surely, 2^38658970 is an apocalyptic number.

38658970 is an abundant number, since it is smaller than the sum of its proper divisors (40868198).

38658970 is a wasteful number, since it uses less digits than its factorization.

38658970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552285.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 38658970 is about 6217.6337942983. The cubic root of 38658970 is about 338.1297833826.

The spelling of 38658970 in words is "thirty-eight million, six hundred fifty-eight thousand, nine hundred seventy".