861360442 has 16 divisors (see below), whose sum is σ = 1368343872. Its totient is φ = 405804960.

The previous prime is 861360433. The next prime is 861360457. The reversal of 861360442 is 244063168.

It is a super-2 number, since 2×861360442² = 1483883622084870728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 861360398 and 861360407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136659 + ... + 142822.

It is an arithmetic number, because the mean of its divisors is an integer number (85521492).

Almost surely, 2^861360442 is an apocalyptic number.

861360442 is a deficient number, since it is larger than the sum of its proper divisors (506983430).

861360442 is a wasteful number, since it uses less digits than its factorization.

861360442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279573.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 861360442 is about 29348.9427748258. The cubic root of 861360442 is about 951.4697257831.

The spelling of 861360442 in words is "eight hundred sixty-one million, three hundred sixty thousand, four hundred forty-two".