38961886 has 8 divisors (see below), whose sum is σ = 59099760. Its totient is φ = 19261968.

The previous prime is 38961869. The next prime is 38961887. The reversal of 38961886 is 68816983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38961887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109266 + ... + 109621.

It is an arithmetic number, because the mean of its divisors is an integer number (7387470).

Almost surely, 2^38961886 is an apocalyptic number.

38961886 is a deficient number, since it is larger than the sum of its proper divisors (20137874).

38961886 is a wasteful number, since it uses less digits than its factorization.

38961886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218978.

The product of its digits is 497664, while the sum is 49.

The square root of 38961886 is about 6241.9456902476. The cubic root of 38961886 is about 339.0106359585.

The spelling of 38961886 in words is "thirty-eight million, nine hundred sixty-one thousand, eight hundred eighty-six".