38121442 has 16 divisors (see below), whose sum is σ = 60223680. Its totient is φ = 18062352.

The previous prime is 38121439. The next prime is 38121449. The reversal of 38121442 is 24412183.

It is not an unprimeable number, because it can be changed into a prime (38121449) 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, 1213 + ... + 8815.

It is an arithmetic number, because the mean of its divisors is an integer number (3763980).

Almost surely, 2^38121442 is an apocalyptic number.

38121442 is a deficient number, since it is larger than the sum of its proper divisors (22102238).

38121442 is a wasteful number, since it uses less digits than its factorization.

38121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7737.

The product of its digits is 1536, while the sum is 25.

The square root of 38121442 is about 6174.2563924735. The cubic root of 38121442 is about 336.5553045832. Note that the first 3 decimals are identical.

The spelling of 38121442 in words is "thirty-eight million, one hundred twenty-one thousand, four hundred forty-two".