42472940 has 24 divisors (see below), whose sum is σ = 90016080. Its totient is φ = 16832448.

The previous prime is 42472879. The next prime is 42472967. The reversal of 42472940 is 4927424.

It is a junction number, because it is equal to n+sod(n) for n = 42472897 and 42472906.

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 7 ways as a sum of consecutive naturals, for example, 7562 + ... + 11921.

It is an arithmetic number, because the mean of its divisors is an integer number (3750670).

Almost surely, 2^42472940 is an apocalyptic number.

It is an amenable number.

42472940 is an abundant number, since it is smaller than the sum of its proper divisors (47543140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42472940 is a wasteful number, since it uses less digits than its factorization.

42472940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601 (or 19599 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42472940 is about 6517.1266674816. The cubic root of 42472940 is about 348.9025214688.

The spelling of 42472940 in words is "forty-two million, four hundred seventy-two thousand, nine hundred forty".