42504669 has 20 divisors (see below), whose sum is σ = 63675040. Its totient is φ = 28256040.

The previous prime is 42504593. The next prime is 42504677. The reversal of 42504669 is 96640524.

It is not a de Polignac number, because 42504669 - 2²¹ = 40407517 is a prime.

It is a super-2 number, since 2×42504669² = 3613293773599122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42500669) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45792 + ... + 46710.

It is an arithmetic number, because the mean of its divisors is an integer number (3183752).

Almost surely, 2^42504669 is an apocalyptic number.

It is an amenable number.

42504669 is a deficient number, since it is larger than the sum of its proper divisors (21170371).

42504669 is an equidigital number, since it uses as much as digits as its factorization.

42504669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 42504669 is about 6519.5604913215. The cubic root of 42504669 is about 348.9893812638.

The spelling of 42504669 in words is "forty-two million, five hundred four thousand, six hundred sixty-nine".