420975436 has 24 divisors (see below), whose sum is σ = 843320576. Its totient is φ = 180124560.

The previous prime is 420975431. The next prime is 420975439. The reversal of 420975436 is 634579024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420975431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5755 + ... + 29581.

Almost surely, 2^420975436 is an apocalyptic number.

It is an amenable number.

420975436 is an abundant number, since it is smaller than the sum of its proper divisors (422345140).

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

420975436 is a wasteful number, since it uses less digits than its factorization.

420975436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24469 (or 24467 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 420975436 is about 20517.6859318979. The cubic root of 420975436 is about 749.4665456957.

The spelling of 420975436 in words is "four hundred twenty million, nine hundred seventy-five thousand, four hundred thirty-six".