38772142 has 8 divisors (see below), whose sum is σ = 59576832. Its totient is φ = 18913200.

The previous prime is 38772137. The next prime is 38772157. The reversal of 38772142 is 24127783.

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

It is a junction number, because it is equal to n+sod(n) for n = 38772098 and 38772107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236334 + ... + 236497.

It is an arithmetic number, because the mean of its divisors is an integer number (7447104).

Almost surely, 2^38772142 is an apocalyptic number.

38772142 is a deficient number, since it is larger than the sum of its proper divisors (20804690).

38772142 is a wasteful number, since it uses less digits than its factorization.

38772142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472874.

The product of its digits is 18816, while the sum is 34.

The square root of 38772142 is about 6226.7280332451. The cubic root of 38772142 is about 338.4594140230.

The spelling of 38772142 in words is "thirty-eight million, seven hundred seventy-two thousand, one hundred forty-two".