420685368 has 32 divisors (see below), whose sum is σ = 1087981200. Its totient is φ = 135392768.

The previous prime is 420685351. The next prime is 420685393. The reversal of 420685368 is 863586024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301521 + ... + 302912.

Almost surely, 2^420685368 is an apocalyptic number.

It is an amenable number.

420685368 is an abundant number, since it is smaller than the sum of its proper divisors (667295832).

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

420685368 is a wasteful number, since it uses less digits than its factorization.

420685368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604471 (or 604467 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 420685368 is about 20510.6159829489. The cubic root of 420685368 is about 749.2943692107.

The spelling of 420685368 in words is "four hundred twenty million, six hundred eighty-five thousand, three hundred sixty-eight".