402166514440 has 32 divisors (see below), whose sum is σ = 906459428160. Its totient is φ = 160584868800.

The previous prime is 402166514437. The next prime is 402166514441. The reversal of 402166514440 is 44415661204.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 402166514440.

It is not an unprimeable number, because it can be changed into a prime (402166514441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8781156 + ... + 8826835.

It is an arithmetic number, because the mean of its divisors is an integer number (28326857130).

Almost surely, 2^402166514440 is an apocalyptic number.

402166514440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402166514440 is an abundant number, since it is smaller than the sum of its proper divisors (504292913720).

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

402166514440 is a wasteful number, since it uses less digits than its factorization.

402166514440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17608573 (or 17608569 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 402166514440 in words is "four hundred two billion, one hundred sixty-six million, five hundred fourteen thousand, four hundred forty".