42499732 has 48 divisors (see below), whose sum is σ = 88401600. Its totient is φ = 17660160.

The previous prime is 42499727. The next prime is 42499733. The reversal of 42499732 is 23799424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42499733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23368 + ... + 25120.

It is an arithmetic number, because the mean of its divisors is an integer number (1841700).

Almost surely, 2^42499732 is an apocalyptic number.

It is an amenable number.

42499732 is an abundant number, since it is smaller than the sum of its proper divisors (45901868).

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

42499732 is a wasteful number, since it uses less digits than its factorization.

42499732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1814 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 42499732 is about 6519.1818505085. The cubic root of 42499732 is about 348.9758688088.

The spelling of 42499732 in words is "forty-two million, four hundred ninety-nine thousand, seven hundred thirty-two".