42504407 has 4 divisors (see below), whose sum is σ = 46368456. Its totient is φ = 38640360.

The previous prime is 42504337. The next prime is 42504433. The reversal of 42504407 is 70440524.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42504407 - 2⁸ = 42504151 is a prime.

It is a super-2 number, since 2×42504407² = 3613249228843298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42503407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1932008 + ... + 1932029.

It is an arithmetic number, because the mean of its divisors is an integer number (11592114).

Almost surely, 2^42504407 is an apocalyptic number.

42504407 is a deficient number, since it is larger than the sum of its proper divisors (3864049).

42504407 is a wasteful number, since it uses less digits than its factorization.

42504407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864048.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 42504407 is about 6519.5403979115. The cubic root of 42504407 is about 348.9886642022.

The spelling of 42504407 in words is "forty-two million, five hundred four thousand, four hundred seven".