402070580 has 24 divisors (see below), whose sum is σ = 844782792. Its totient is φ = 160745472.

The previous prime is 402070549. The next prime is 402070637. The reversal of 402070580 is 85070204.

It can be written as a sum of positive squares in 4 ways, for example, as 179881744 + 222188836 = 13412^2 + 14906^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47984 + ... + 55736.

It is an arithmetic number, because the mean of its divisors is an integer number (35199283).

Almost surely, 2^402070580 is an apocalyptic number.

It is an amenable number.

402070580 is an abundant number, since it is smaller than the sum of its proper divisors (442712212).

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

402070580 is a wasteful number, since it uses less digits than its factorization.

402070580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355 (or 10353 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 402070580 is about 20051.6976837374. The cubic root of 402070580 is about 738.0754593170.

The spelling of 402070580 in words is "four hundred two million, seventy thousand, five hundred eighty".