423940580 has 24 divisors (see below), whose sum is σ = 1017457728. Its totient is φ = 145351008.

The previous prime is 423940579. The next prime is 423940607. The reversal of 423940580 is 85049324.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 423940580.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513934 + ... + 1514213.

It is an arithmetic number, because the mean of its divisors is an integer number (42394072).

Almost surely, 2^423940580 is an apocalyptic number.

It is an amenable number.

423940580 is an abundant number, since it is smaller than the sum of its proper divisors (593517148).

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

423940580 is a wasteful number, since it uses less digits than its factorization.

423940580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028163 (or 3028161 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 423940580 is about 20589.8173862713. The cubic root of 423940580 is about 751.2220551010. Note that the first 3 decimals are identical.

The spelling of 423940580 in words is "four hundred twenty-three million, nine hundred forty thousand, five hundred eighty".