402440107 has 8 divisors (see below), whose sum is σ = 405409536. Its totient is φ = 399477672.

The previous prime is 402440081. The next prime is 402440113. The reversal of 402440107 is 701044204.

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 402440107 - 2²³ = 394051499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402440147) 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, 176388 + ... + 178654.

It is an arithmetic number, because the mean of its divisors is an integer number (50676192).

Almost surely, 2^402440107 is an apocalyptic number.

402440107 is a deficient number, since it is larger than the sum of its proper divisors (2969429).

402440107 is a wasteful number, since it uses less digits than its factorization.

402440107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 402440107 is about 20060.9099245274. The cubic root of 402440107 is about 738.3015019673.

The spelling of 402440107 in words is "four hundred two million, four hundred forty thousand, one hundred seven".