462081820 has 24 divisors (see below), whose sum is σ = 977460624. Its totient is φ = 183482496.

The previous prime is 462081787. The next prime is 462081869. The reversal of 462081820 is 28180264.

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, 81582 + ... + 87061.

It is an arithmetic number, because the mean of its divisors is an integer number (40727526).

Almost surely, 2^462081820 is an apocalyptic number.

It is an amenable number.

462081820 is an abundant number, since it is smaller than the sum of its proper divisors (515378804).

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

462081820 is a wasteful number, since it uses less digits than its factorization.

462081820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168789 (or 168787 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 462081820 is about 21496.0884813959. The cubic root of 462081820 is about 773.1070388379.

The spelling of 462081820 in words is "four hundred sixty-two million, eighty-one thousand, eight hundred twenty".