42474681 has 12 divisors (see below), whose sum is σ = 63331840. Its totient is φ = 27402840.

The previous prime is 42474673. The next prime is 42474713. The reversal of 42474681 is 18647424.

It is not a de Polignac number, because 42474681 - 2³ = 42474673 is a prime.

It is a super-2 number, since 2×42474681² = 3608197052103522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42474661) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 75841 + ... + 76398.

Almost surely, 2^42474681 is an apocalyptic number.

It is an amenable number.

42474681 is a deficient number, since it is larger than the sum of its proper divisors (20857159).

42474681 is a wasteful number, since it uses less digits than its factorization.

42474681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152276 (or 152273 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 42474681 is about 6517.2602372469. The cubic root of 42474681 is about 348.9072886687.

The spelling of 42474681 in words is "forty-two million, four hundred seventy-four thousand, six hundred eighty-one".