402242118 has 16 divisors (see below), whose sum is σ = 815505456. Its totient is φ = 132243840.

The previous prime is 402242107. The next prime is 402242129. The reversal of 402242118 is 811242204.

It is an interprime number because it is at equal distance from previous prime (402242107) and next prime (402242129).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458743 + ... + 459618.

It is an arithmetic number, because the mean of its divisors is an integer number (50969091).

Almost surely, 2^402242118 is an apocalyptic number.

402242118 is an abundant number, since it is smaller than the sum of its proper divisors (413263338).

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

402242118 is a wasteful number, since it uses less digits than its factorization.

402242118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918439.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 402242118 is about 20055.9746210450. The cubic root of 402242118 is about 738.1804077129.

The spelling of 402242118 in words is "four hundred two million, two hundred forty-two thousand, one hundred eighteen".