424555904 has 16 divisors (see below), whose sum is σ = 845795220. Its totient is φ = 212277888.

The previous prime is 424555891. The next prime is 424555907. The reversal of 424555904 is 409555424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×424555904³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424555907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1658294 + ... + 1658549.

Almost surely, 2^424555904 is an apocalyptic number.

It is an amenable number.

424555904 is a deficient number, since it is larger than the sum of its proper divisors (421239316).

424555904 is an equidigital number, since it uses as much as digits as its factorization.

424555904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316857 (or 3316845 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 424555904 is about 20604.7544028071. The cubic root of 424555904 is about 751.5853304605.

The spelling of 424555904 in words is "four hundred twenty-four million, five hundred fifty-five thousand, nine hundred four".