38671842 has 24 divisors (see below), whose sum is σ = 85015728. Its totient is φ = 11718520.

The previous prime is 38671817. The next prime is 38671847. The reversal of 38671842 is 24817683.

It is a super-2 number, since 2×38671842² = 2991022727345928, 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 38671842.

It is not an unprimeable number, because it can be changed into a prime (38671847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25908 + ... + 27359.

It is an arithmetic number, because the mean of its divisors is an integer number (3542322).

Almost surely, 2^38671842 is an apocalyptic number.

38671842 is an abundant number, since it is smaller than the sum of its proper divisors (46343886).

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

38671842 is a wasteful number, since it uses less digits than its factorization.

38671842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53294 (or 53283 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 38671842 is about 6218.6688286160. The cubic root of 38671842 is about 338.1673074345.

It can be divided in two parts, 386718 and 42, that added together give a triangular number (386760 = T₈₇₉).

The spelling of 38671842 in words is "thirty-eight million, six hundred seventy-one thousand, eight hundred forty-two".