38479690 has 32 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 14646720.

The previous prime is 38479681. The next prime is 38479691. The reversal of 38479690 is 9697483.

It is a super-2 number, since 2×38479690² = 2961373084992200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 38479690.

It is not an unprimeable number, because it can be changed into a prime (38479691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67105 + ... + 67675.

It is an arithmetic number, because the mean of its divisors is an integer number (2270268).

Almost surely, 2^38479690 is an apocalyptic number.

38479690 is a deficient number, since it is larger than the sum of its proper divisors (34168886).

38479690 is a wasteful number, since it uses less digits than its factorization.

38479690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 38479690 is about 6203.1999806551. The cubic root of 38479690 is about 337.6062838558.

The spelling of 38479690 in words is "thirty-eight million, four hundred seventy-nine thousand, six hundred ninety".