420389932 has 12 divisors (see below), whose sum is σ = 740976040. Its totient is φ = 208682496.

The previous prime is 420389917. The next prime is 420389969. The reversal of 420389932 is 239983024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377493 + ... + 378604.

Almost surely, 2^420389932 is an apocalyptic number.

It is an amenable number.

420389932 is a deficient number, since it is larger than the sum of its proper divisors (320586108).

420389932 is a wasteful number, since it uses less digits than its factorization.

420389932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756240 (or 756238 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 420389932 is about 20503.4126915497. The cubic root of 420389932 is about 749.1189250516.

The spelling of 420389932 in words is "four hundred twenty million, three hundred eighty-nine thousand, nine hundred thirty-two".