42513404 has 12 divisors (see below), whose sum is σ = 74533200. Its totient is φ = 21218208.

The previous prime is 42513397. The next prime is 42513463. The reversal of 42513404 is 40431524.

It is a self number, because there is not a number n which added to its sum of digits gives 42513404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064 + ... + 11615.

It is an arithmetic number, because the mean of its divisors is an integer number (6211100).

Almost surely, 2^42513404 is an apocalyptic number.

It is an amenable number.

42513404 is a deficient number, since it is larger than the sum of its proper divisors (32019796).

42513404 is a wasteful number, since it uses less digits than its factorization.

42513404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19252 (or 19250 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42513404 is about 6520.2303640286. The cubic root of 42513404 is about 349.0132861941.

Adding to 42513404 its reverse (40431524), we get a palindrome (82944928).

The spelling of 42513404 in words is "forty-two million, five hundred thirteen thousand, four hundred four".