859442356 has 6 divisors (see below), whose sum is σ = 1504024130. Its totient is φ = 429721176.

The previous prime is 859442351. The next prime is 859442377. The reversal of 859442356 is 653244958.

It can be written as a sum of positive squares in only one way, i.e., 754051600 + 105390756 = 27460^2 + 10266^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859442351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107430291 + ... + 107430298.

Almost surely, 2^859442356 is an apocalyptic number.

It is an amenable number.

859442356 is a deficient number, since it is larger than the sum of its proper divisors (644581774).

859442356 is a wasteful number, since it uses less digits than its factorization.

859442356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214860593 (or 214860591 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The square root of 859442356 is about 29316.2473041827. The cubic root of 859442356 is about 950.7629534909.

The spelling of 859442356 in words is "eight hundred fifty-nine million, four hundred forty-two thousand, three hundred fifty-six".