421764076 has 6 divisors (see below), whose sum is σ = 738087140. Its totient is φ = 210882036.

The previous prime is 421764059. The next prime is 421764127. The reversal of 421764076 is 670467124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52720506 + ... + 52720513.

Almost surely, 2^421764076 is an apocalyptic number.

It is an amenable number.

421764076 is a deficient number, since it is larger than the sum of its proper divisors (316323064).

421764076 is a wasteful number, since it uses less digits than its factorization.

421764076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105441023 (or 105441021 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 421764076 is about 20536.8954810604. The cubic root of 421764076 is about 749.9342614974.

The spelling of 421764076 in words is "four hundred twenty-one million, seven hundred sixty-four thousand, seventy-six".