420457896 has 24 divisors (see below), whose sum is σ = 1138740330. Its totient is φ = 140152608.

The previous prime is 420457861. The next prime is 420457901. The reversal of 420457896 is 698754024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 419840100 + 617796 = 20490^2 + 786^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2919775 + ... + 2919918.

Almost surely, 2^420457896 is an apocalyptic number.

It is an amenable number.

420457896 is an abundant number, since it is smaller than the sum of its proper divisors (718282434).

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

420457896 is a wasteful number, since it uses less digits than its factorization.

420457896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839705 (or 5839698 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 420457896 is about 20505.0700071958. The cubic root of 420457896 is about 749.1592926336.

The spelling of 420457896 in words is "four hundred twenty million, four hundred fifty-seven thousand, eight hundred ninety-six".