402455568 has 80 divisors (see below), whose sum is σ = 1097707520. Its totient is φ = 126707328.

The previous prime is 402455563. The next prime is 402455593. The reversal of 402455568 is 865554204.

It is not an unprimeable number, because it can be changed into a prime (402455561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553221 + ... + 553947.

It is an arithmetic number, because the mean of its divisors is an integer number (13721344).

Almost surely, 2^402455568 is an apocalyptic number.

402455568 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 402455568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548853760).

402455568 is an abundant number, since it is smaller than the sum of its proper divisors (695251952).

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

402455568 is a wasteful number, since it uses less digits than its factorization.

402455568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 402455568 is about 20061.2952722400. The cubic root of 402455568 is about 738.3109565695.

The spelling of 402455568 in words is "four hundred two million, four hundred fifty-five thousand, five hundred sixty-eight".