420576740 has 12 divisors (see below), whose sum is σ = 883211196. Its totient is φ = 168230688.

The previous prime is 420576733. The next prime is 420576773. The reversal of 420576740 is 47675024.

It can be written as a sum of positive squares in 2 ways, for example, as 249071524 + 171505216 = 15782^2 + 13096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 420576740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10514399 + ... + 10514438.

It is an arithmetic number, because the mean of its divisors is an integer number (73600933).

Almost surely, 2^420576740 is an apocalyptic number.

It is an amenable number.

420576740 is an abundant number, since it is smaller than the sum of its proper divisors (462634456).

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

420576740 is a wasteful number, since it uses less digits than its factorization.

420576740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21028846 (or 21028844 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 420576740 is about 20507.9677198888. The cubic root of 420576740 is about 749.2298702116.

The spelling of 420576740 in words is "four hundred twenty million, five hundred seventy-six thousand, seven hundred forty".