1310440172 has 24 divisors (see below), whose sum is σ = 2430615600. Its totient is φ = 616056320.

The previous prime is 1310440171. The next prime is 1310440193. The reversal of 1310440172 is 2710440131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1310440171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62147 + ... + 80517.

It is an arithmetic number, because the mean of its divisors is an integer number (101275650).

Almost surely, 2^1310440172 is an apocalyptic number.

It is an amenable number.

1310440172 is a deficient number, since it is larger than the sum of its proper divisors (1120175428).

1310440172 is a wasteful number, since it uses less digits than its factorization.

1310440172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19441 (or 19439 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1310440172 is about 36200.0023756905. The cubic root of 1310440172 is about 1094.3067196092.

The spelling of 1310440172 in words is "one billion, three hundred ten million, four hundred forty thousand, one hundred seventy-two".