402428495328 has 96 divisors (see below), whose sum is σ = 1074005321760. Its totient is φ = 131905320960.

The previous prime is 402428495251. The next prime is 402428495333. The reversal of 402428495328 is 823594824204.

402428495328 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25741018 + ... + 25756646.

It is an arithmetic number, because the mean of its divisors is an integer number (11187555435).

Almost surely, 2^402428495328 is an apocalyptic number.

402428495328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402428495328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537002660880).

402428495328 is an abundant number, since it is smaller than the sum of its proper divisors (671576826432).

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

402428495328 is a wasteful number, since it uses less digits than its factorization.

402428495328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20100 (or 20092 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The spelling of 402428495328 in words is "four hundred two billion, four hundred twenty-eight million, four hundred ninety-five thousand, three hundred twenty-eight".