402414220 has 96 divisors (see below), whose sum is σ = 951854400. Its totient is φ = 141917184.

The previous prime is 402414211. The next prime is 402414239. The reversal of 402414220 is 22414204.

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 31 ways as a sum of consecutive naturals, for example, 567226 + ... + 567934.

It is an arithmetic number, because the mean of its divisors is an integer number (9915150).

Almost surely, 2^402414220 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 402414220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475927200).

402414220 is an abundant number, since it is smaller than the sum of its proper divisors (549440180).

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

402414220 is a wasteful number, since it uses less digits than its factorization.

402414220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 402414220 is about 20060.2647041359. The cubic root of 402414220 is about 738.2856711886.

Adding to 402414220 its reverse (22414204), we get a palindrome (424828424).

The spelling of 402414220 in words is "four hundred two million, four hundred fourteen thousand, two hundred twenty".