402022152 has 192 divisors, whose sum is σ = 1317888000. Its totient is φ = 108231552.

The previous prime is 402022133. The next prime is 402022189. The reversal of 402022152 is 251220204.

It is a super-2 number, since 2×402022152² = 323243621397422208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 915549 + ... + 915987.

It is an arithmetic number, because the mean of its divisors is an integer number (6864000).

Almost surely, 2^402022152 is an apocalyptic number.

402022152 is a gapful number since it is divisible by the number (42) 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 402022152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658944000).

402022152 is an abundant number, since it is smaller than the sum of its proper divisors (915865848).

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

402022152 is a wasteful number, since it uses less digits than its factorization.

402022152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 402022152 is about 20050.4900688238. The cubic root of 402022152 is about 738.0458252550.

Adding to 402022152 its reverse (251220204), we get a palindrome (653242356).

The spelling of 402022152 in words is "four hundred two million, twenty-two thousand, one hundred fifty-two".