402662016 has 160 divisors (see below), whose sum is σ = 1217414880. Its totient is φ = 132088320.

The previous prime is 402661999. The next prime is 402662021. The reversal of 402662016 is 610266204.

It is a happy number.

402662016 is a `hidden beast` number, since 4 + 0 + 26 + 620 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 735855 + ... + 736401.

It is an arithmetic number, because the mean of its divisors is an integer number (7608843).

Almost surely, 2^402662016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402662016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608707440).

402662016 is an abundant number, since it is smaller than the sum of its proper divisors (814752864).

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

402662016 is an equidigital number, since it uses as much as digits as its factorization.

402662016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 402662016 is about 20066.4400430171. The cubic root of 402662016 is about 738.4371790042.

The spelling of 402662016 in words is "four hundred two million, six hundred sixty-two thousand, sixteen".