402720515470 has 384 divisors, whose sum is σ = 960983654400. Its totient is φ = 121257077760.

The previous prime is 402720515453. The next prime is 402720515489. The reversal of 402720515470 is 74515027204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1311793057 + ... + 1311793363.

It is an arithmetic number, because the mean of its divisors is an integer number (2502561600).

Almost surely, 2^402720515470 is an apocalyptic number.

402720515470 is an abundant number, since it is smaller than the sum of its proper divisors (558263138930).

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

402720515470 is a wasteful number, since it uses less digits than its factorization.

402720515470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 402720515470 in words is "four hundred two billion, seven hundred twenty million, five hundred fifteen thousand, four hundred seventy".