1423646856 has 48 divisors (see below), whose sum is σ = 3857805900. Its totient is φ = 474291072.

The previous prime is 1423646843. The next prime is 1423646863. The reversal of 1423646856 is 6586463241.

It can be written as a sum of positive squares in 2 ways, for example, as 1422044100 + 1602756 = 37710^2 + 1266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165510 + ... + 173898.

Almost surely, 2^1423646856 is an apocalyptic number.

It is an amenable number.

1423646856 is an abundant number, since it is smaller than the sum of its proper divisors (2434159044).

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

1423646856 is a wasteful number, since it uses less digits than its factorization.

1423646856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10758 (or 10751 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 1423646856 is about 37731.2450894481. The cubic root of 1423646856 is about 1124.9522563442.

The spelling of 1423646856 in words is "one billion, four hundred twenty-three million, six hundred forty-six thousand, eight hundred fifty-six".