38151642 has 16 divisors (see below), whose sum is σ = 77597280. Its totient is φ = 12501552.

The previous prime is 38151613. The next prime is 38151643. The reversal of 38151642 is 24615183.

It is a super-4 number, since 4×38151642⁴ (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (38151643) 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, 53533 + ... + 54240.

It is an arithmetic number, because the mean of its divisors is an integer number (4849830).

Almost surely, 2^38151642 is an apocalyptic number.

38151642 is an abundant number, since it is smaller than the sum of its proper divisors (39445638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38151642 is a wasteful number, since it uses less digits than its factorization.

38151642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107837.

The product of its digits is 5760, while the sum is 30.

The square root of 38151642 is about 6176.7015469423. The cubic root of 38151642 is about 336.6441547321.

The spelling of 38151642 in words is "thirty-eight million, one hundred fifty-one thousand, six hundred forty-two".