402721118460 has 120 divisors (see below), whose sum is σ = 1329843327120. Its totient is φ = 101740064256.

The previous prime is 402721118417. The next prime is 402721118473. The reversal of 402721118460 is 64811127204.

It is a happy number.

402721118460 is a `hidden beast` number, since 40 + 27 + 21 + 118 + 460 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6511149 + ... + 6572708.

It is an arithmetic number, because the mean of its divisors is an integer number (11082027726).

Almost surely, 2^402721118460 is an apocalyptic number.

It is an amenable number.

402721118460 is an abundant number, since it is smaller than the sum of its proper divisors (927122208660).

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

402721118460 is a wasteful number, since it uses less digits than its factorization.

402721118460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13083897 (or 13083886 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 402721118460 in words is "four hundred two billion, seven hundred twenty-one million, one hundred eighteen thousand, four hundred sixty".