402220410 has 32 divisors (see below), whose sum is σ = 967066560. Its totient is φ = 107065728.

The previous prime is 402220387. The next prime is 402220439. The reversal of 402220410 is 14022204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 402220410.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5289 + ... + 28851.

It is an arithmetic number, because the mean of its divisors is an integer number (30220830).

Almost surely, 2^402220410 is an apocalyptic number.

402220410 is an abundant number, since it is smaller than the sum of its proper divisors (564846150).

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

402220410 is a wasteful number, since it uses less digits than its factorization.

402220410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24142.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 402220410 is about 20055.4334283755. The cubic root of 402220410 is about 738.1671282246.

Adding to 402220410 its reverse (14022204), we get a palindrome (416242614).

The spelling of 402220410 in words is "four hundred two million, two hundred twenty thousand, four hundred ten".