424552905 has 72 divisors (see below), whose sum is σ = 883793664. Its totient is φ = 187790400.

The previous prime is 424552901. The next prime is 424552907. The reversal of 424552905 is 509255424.

It is not a de Polignac number, because 424552905 - 2² = 424552901 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 424552905.

It is not an unprimeable number, because it can be changed into a prime (424552901) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 65250 + ... + 71460.

It is an arithmetic number, because the mean of its divisors is an integer number (12274912).

Almost surely, 2^424552905 is an apocalyptic number.

424552905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424552905 is an abundant number, since it is smaller than the sum of its proper divisors (459240759).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424552905 is a wasteful number, since it uses less digits than its factorization.

424552905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267 (or 6257 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 424552905 is about 20604.6816282126. The cubic root of 424552905 is about 751.5835607605.

The spelling of 424552905 in words is "four hundred twenty-four million, five hundred fifty-two thousand, nine hundred five".