420392790 has 24 divisors (see below), whose sum is σ = 1093021488. Its totient is φ = 112104720.

The previous prime is 420392789. The next prime is 420392801. The reversal of 420392790 is 97293024.

It is a congruent number.

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, 2335426 + ... + 2335605.

It is an arithmetic number, because the mean of its divisors is an integer number (45542562).

Almost surely, 2^420392790 is an apocalyptic number.

420392790 is an abundant number, since it is smaller than the sum of its proper divisors (672628698).

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

420392790 is a wasteful number, since it uses less digits than its factorization.

420392790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671044 (or 4671041 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 420392790 is about 20503.4823871458. The cubic root of 420392790 is about 749.1206226636.

The spelling of 420392790 in words is "four hundred twenty million, three hundred ninety-two thousand, seven hundred ninety".