1316405244 has 48 divisors (see below), whose sum is σ = 3829545216. Its totient is φ = 341923200.

The previous prime is 1316405243. The next prime is 1316405261. The reversal of 1316405244 is 4425046131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316405243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711417 + ... + 713264.

It is an arithmetic number, because the mean of its divisors is an integer number (79782192).

Almost surely, 2^1316405244 is an apocalyptic number.

1316405244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1316405244 is an abundant number, since it is smaller than the sum of its proper divisors (2513139972).

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

1316405244 is a wasteful number, since it uses less digits than its factorization.

1316405244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424706 (or 1424704 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1316405244 is about 36282.2993207432. The cubic root of 1316405244 is about 1095.9646202638.

The spelling of 1316405244 in words is "one billion, three hundred sixteen million, four hundred five thousand, two hundred forty-four".