42502413 has 16 divisors (see below), whose sum is σ = 59512320. Its totient is φ = 26929584.

The previous prime is 42502387. The next prime is 42502417. The reversal of 42502413 is 31420524.

It is not a de Polignac number, because 42502413 - 2⁸ = 42502157 is a prime.

It is a super-2 number, since 2×42502413² = 3612910221645138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42502413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42502417) 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, 9358 + ... + 13136.

It is an arithmetic number, because the mean of its divisors is an integer number (3719520).

Almost surely, 2^42502413 is an apocalyptic number.

It is an amenable number.

42502413 is a deficient number, since it is larger than the sum of its proper divisors (17009907).

42502413 is a wasteful number, since it uses less digits than its factorization.

42502413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42502413 is about 6519.3874712276. The cubic root of 42502413 is about 348.9832067737.

Adding to 42502413 its reverse (31420524), we get a palindrome (73922937).

The spelling of 42502413 in words is "forty-two million, five hundred two thousand, four hundred thirteen".