402476647280 has 80 divisors (see below), whose sum is σ = 949768675200. Its totient is φ = 158593628160.

The previous prime is 402476647277. The next prime is 402476647301. The reversal of 402476647280 is 82746674204.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1825226 + ... + 2033814.

It is an arithmetic number, because the mean of its divisors is an integer number (11872108440).

Almost surely, 2^402476647280 is an apocalyptic number.

402476647280 is a gapful number since it is divisible by the number (40) 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 402476647280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474884337600).

402476647280 is an abundant number, since it is smaller than the sum of its proper divisors (547292027920).

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

402476647280 is a wasteful number, since it uses less digits than its factorization.

402476647280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208962 (or 208956 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 50.

The spelling of 402476647280 in words is "four hundred two billion, four hundred seventy-six million, six hundred forty-seven thousand, two hundred eighty".