42002924 has 12 divisors (see below), whose sum is σ = 74892384. Its totient is φ = 20605104.

The previous prime is 42002921. The next prime is 42002929. The reversal of 42002924 is 42920024.

It is a self number, because there is not a number n which added to its sum of digits gives 42002924.

It is not an unprimeable number, because it can be changed into a prime (42002921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98852 + ... + 99275.

It is an arithmetic number, because the mean of its divisors is an integer number (6241032).

Almost surely, 2^42002924 is an apocalyptic number.

It is an amenable number.

42002924 is a deficient number, since it is larger than the sum of its proper divisors (32889460).

42002924 is a wasteful number, since it uses less digits than its factorization.

42002924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198184 (or 198182 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 42002924 is about 6480.9662859793. The cubic root of 42002924 is about 347.6107308903.

Adding to 42002924 its reverse (42920024), we get a palindrome (84922948).

The spelling of 42002924 in words is "forty-two million, two thousand, nine hundred twenty-four".