402242117 has 8 divisors (see below), whose sum is σ = 433123200. Its totient is φ = 372163264.

The previous prime is 402242107. The next prime is 402242129. The reversal of 402242117 is 711242204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402242117 - 2¹⁰ = 402241093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402242092 and 402242101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402242107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199517 + ... + 201522.

It is an arithmetic number, because the mean of its divisors is an integer number (54140400).

Almost surely, 2^402242117 is an apocalyptic number.

It is an amenable number.

402242117 is a deficient number, since it is larger than the sum of its proper divisors (30881083).

402242117 is a wasteful number, since it uses less digits than its factorization.

402242117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401115.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 402242117 is about 20055.9745961147. The cubic root of 402242117 is about 738.1804071012.

The spelling of 402242117 in words is "four hundred two million, two hundred forty-two thousand, one hundred seventeen".