42321508 has 12 divisors (see below), whose sum is σ = 74278512. Its totient is φ = 21099080.

The previous prime is 42321491. The next prime is 42321511. The reversal of 42321508 is 80512324.

It is a super-2 number, since 2×42321508² = 3582220078788128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13858 + ... + 16633.

It is an arithmetic number, because the mean of its divisors is an integer number (6189876).

Almost surely, 2^42321508 is an apocalyptic number.

It is an amenable number.

42321508 is a deficient number, since it is larger than the sum of its proper divisors (31957004).

42321508 is a wasteful number, since it uses less digits than its factorization.

42321508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30842 (or 30840 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42321508 is about 6505.4982899083. The cubic root of 42321508 is about 348.4873714656.

The spelling of 42321508 in words is "forty-two million, three hundred twenty-one thousand, five hundred eight".