423547020 has 72 divisors (see below), whose sum is σ = 1383594576. Its totient is φ = 104257152.

The previous prime is 423546983. The next prime is 423547049. The reversal of 423547020 is 20745324.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88162 + ... + 92841.

Almost surely, 2^423547020 is an apocalyptic number.

It is an amenable number.

423547020 is an abundant number, since it is smaller than the sum of its proper divisors (960047556).

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

423547020 is a wasteful number, since it uses less digits than its factorization.

423547020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181031 (or 181026 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 423547020 is about 20580.2580158753. The cubic root of 423547020 is about 750.9895205579.

The spelling of 423547020 in words is "four hundred twenty-three million, five hundred forty-seven thousand, twenty".