42313138 has 16 divisors (see below), whose sum is σ = 73727424. Its totient is φ = 17836560.

The previous prime is 42313099. The next prime is 42313147. The reversal of 42313138 is 83131324.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23920 + ... + 25627.

It is an arithmetic number, because the mean of its divisors is an integer number (4607964).

Almost surely, 2^42313138 is an apocalyptic number.

42313138 is a deficient number, since it is larger than the sum of its proper divisors (31414286).

42313138 is a wasteful number, since it uses less digits than its factorization.

42313138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49617.

The product of its digits is 1728, while the sum is 25.

The square root of 42313138 is about 6504.8549561078. The cubic root of 42313138 is about 348.4643962950.

The spelling of 42313138 in words is "forty-two million, three hundred thirteen thousand, one hundred thirty-eight".