402156106 has 16 divisors (see below), whose sum is σ = 658391328. Its totient is φ = 182710000.

The previous prime is 402156091. The next prime is 402156107. The reversal of 402156106 is 601651204.

It is not an unprimeable number, because it can be changed into a prime (402156107) 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, 70356 + ... + 75856.

It is an arithmetic number, because the mean of its divisors is an integer number (41149458).

Almost surely, 2^402156106 is an apocalyptic number.

402156106 is a deficient number, since it is larger than the sum of its proper divisors (256235222).

402156106 is a wasteful number, since it uses less digits than its factorization.

402156106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8837.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 402156106 is about 20053.8302077184. The cubic root of 402156106 is about 738.1277885759.

The spelling of 402156106 in words is "four hundred two million, one hundred fifty-six thousand, one hundred six".