402622080 has 256 divisors, whose sum is σ = 1518739200. Its totient is φ = 88768512.

The previous prime is 402622063. The next prime is 402622093. The reversal of 402622080 is 80226204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 402622080.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389244 + ... + 390276.

It is an arithmetic number, because the mean of its divisors is an integer number (5932575).

Almost surely, 2^402622080 is an apocalyptic number.

402622080 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 402622080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759369600).

402622080 is an abundant number, since it is smaller than the sum of its proper divisors (1116117120).

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

402622080 is a wasteful number, since it uses less digits than its factorization.

402622080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 402622080 is about 20065.4449240479. Note that the first 3 decimals coincide. The cubic root of 402622080 is about 738.4127654754.

Adding to 402622080 its reverse (80226204), we get a palindrome (482848284).

It can be divided in two parts, 4026 and 22080, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 402622080 in words is "four hundred two million, six hundred twenty-two thousand, eighty".