861902232 has 16 divisors (see below), whose sum is σ = 2154755640. Its totient is φ = 287300736.

The previous prime is 861902219. The next prime is 861902273. The reversal of 861902232 is 232209168.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 861902193 and 861902202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17956273 + ... + 17956320.

Almost surely, 2^861902232 is an apocalyptic number.

It is an amenable number.

861902232 is an abundant number, since it is smaller than the sum of its proper divisors (1292853408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

861902232 is a wasteful number, since it uses less digits than its factorization.

861902232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35912602 (or 35912598 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 861902232 is about 29358.1714689454. The cubic root of 861902232 is about 951.6691733523.

The spelling of 861902232 in words is "eight hundred sixty-one million, nine hundred two thousand, two hundred thirty-two".