421930284 has 24 divisors (see below), whose sum is σ = 984877488. Its totient is φ = 140590080.

The previous prime is 421930273. The next prime is 421930337. The reversal of 421930284 is 482039124.

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, 38544 + ... + 48264.

It is an arithmetic number, because the mean of its divisors is an integer number (41036562).

Almost surely, 2^421930284 is an apocalyptic number.

It is an amenable number.

421930284 is an abundant number, since it is smaller than the sum of its proper divisors (562947204).

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

421930284 is a wasteful number, since it uses less digits than its factorization.

421930284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13345 (or 13343 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 421930284 is about 20540.9416531959. The cubic root of 421930284 is about 750.0327594580.

The spelling of 421930284 in words is "four hundred twenty-one million, nine hundred thirty thousand, two hundred eighty-four".