402442122 has 32 divisors (see below), whose sum is σ = 853906752. Its totient is φ = 126008064.

The previous prime is 402442067. The next prime is 402442141. The reversal of 402442122 is 221244204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52188 + ... + 59400.

It is an arithmetic number, because the mean of its divisors is an integer number (26684586).

Almost surely, 2^402442122 is an apocalyptic number.

402442122 is an abundant number, since it is smaller than the sum of its proper divisors (451464630).

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

402442122 is a wasteful number, since it uses less digits than its factorization.

402442122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7782.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 402442122 is about 20060.9601465134. The cubic root of 402442122 is about 738.3027341796.

Adding to 402442122 its reverse (221244204), we get a palindrome (623686326).

The spelling of 402442122 in words is "four hundred two million, four hundred forty-two thousand, one hundred twenty-two".