420576816244 has 48 divisors (see below), whose sum is σ = 820555258320. Its totient is φ = 187282206720.

The previous prime is 420576816227. The next prime is 420576816281. The reversal of 420576816244 is 442618675024.

It can be written as a sum of positive squares in 8 ways, for example, as 6330111844 + 414246704400 = 79562^2 + 643620^2 .

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, 1981572 + ... + 2183524.

It is an arithmetic number, because the mean of its divisors is an integer number (17094901215).

Almost surely, 2^420576816244 is an apocalyptic number.

It is an amenable number.

420576816244 is a deficient number, since it is larger than the sum of its proper divisors (399978442076).

420576816244 is a wasteful number, since it uses less digits than its factorization.

420576816244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203380 (or 203378 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 420576816244 in words is "four hundred twenty billion, five hundred seventy-six million, eight hundred sixteen thousand, two hundred forty-four".