420655015 has 16 divisors (see below), whose sum is σ = 552077856. Its totient is φ = 305152000.

The previous prime is 420655009. The next prime is 420655031. The reversal of 420655015 is 510556024.

420655015 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 420655015 - 2³ = 420655007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12519 + ... + 31591.

It is an arithmetic number, because the mean of its divisors is an integer number (34504866).

Almost surely, 2^420655015 is an apocalyptic number.

420655015 is a deficient number, since it is larger than the sum of its proper divisors (131422841).

420655015 is a wasteful number, since it uses less digits than its factorization.

420655015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19490.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 420655015 is about 20509.8760357053. The cubic root of 420655015 is about 749.2763479207.

The spelling of 420655015 in words is "four hundred twenty million, six hundred fifty-five thousand, fifteen".