860934440 has 16 divisors (see below), whose sum is σ = 1937102580. Its totient is φ = 344373760.

The previous prime is 860934421. The next prime is 860934443. The reversal of 860934440 is 44439068.

860934440 is nontrivially palindromic in base 3 and base 9.

It can be written as a sum of positive squares in 2 ways, for example, as 688852516 + 172081924 = 26246^2 + 13118^2 .

It is a super-2 number, since 2×860934440² = 1482416219956227200, which contains 22 as substring.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 860934394 and 860934403.

It is not an unprimeable number, because it can be changed into a prime (860934443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10761641 + ... + 10761720.

Almost surely, 2^860934440 is an apocalyptic number.

It is an amenable number.

860934440 is an abundant number, since it is smaller than the sum of its proper divisors (1076168140).

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

860934440 is a wasteful number, since it uses less digits than its factorization.

860934440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21523372 (or 21523368 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 860934440 is about 29341.6843415643. The cubic root of 860934440 is about 951.3128441705.

The spelling of 860934440 in words is "eight hundred sixty million, nine hundred thirty-four thousand, four hundred forty".