856229402 has 8 divisors (see below), whose sum is σ = 1467821856. Its totient is φ = 366955452.

The previous prime is 856229389. The next prime is 856229431. The reversal of 856229402 is 204922658.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30579608 + ... + 30579635.

It is an arithmetic number, because the mean of its divisors is an integer number (183477732).

Almost surely, 2^856229402 is an apocalyptic number.

856229402 is a deficient number, since it is larger than the sum of its proper divisors (611592454).

856229402 is a wasteful number, since it uses less digits than its factorization.

856229402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61159252.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 856229402 is about 29261.3978135017. The cubic root of 856229402 is about 949.5766911850.

The spelling of 856229402 in words is "eight hundred fifty-six million, two hundred twenty-nine thousand, four hundred two".