42490972 has 12 divisors (see below), whose sum is σ = 74471656. Its totient is φ = 21213360.

The previous prime is 42490933. The next prime is 42490991. The reversal of 42490972 is 27909424.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 4923 + ... + 10450.

Almost surely, 2^42490972 is an apocalyptic number.

It is an amenable number.

42490972 is a deficient number, since it is larger than the sum of its proper divisors (31980684).

42490972 is a wasteful number, since it uses less digits than its factorization.

42490972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16068 (or 16066 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 42490972 is about 6518.5099524354. The cubic root of 42490972 is about 348.9518903150.

The spelling of 42490972 in words is "forty-two million, four hundred ninety thousand, nine hundred seventy-two".