1360816640 has 40 divisors (see below), whose sum is σ = 3262776660. Its totient is φ = 544325632.

The previous prime is 1360816631. The next prime is 1360816661. The reversal of 1360816640 is 466180631.

It can be written as a sum of positive squares in 2 ways, for example, as 1357775104 + 3041536 = 36848^2 + 1744^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1360816640.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263225 + ... + 268344.

Almost surely, 2^1360816640 is an apocalyptic number.

1360816640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1360816640 is an abundant number, since it is smaller than the sum of its proper divisors (1901960020).

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

1360816640 is an frugal number, since it uses more digits than its factorization.

1360816640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531592 (or 531576 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1360816640 is about 36889.2482981153. The cubic root of 1360816640 is about 1108.1533671024.

The spelling of 1360816640 in words is "one billion, three hundred sixty million, eight hundred sixteen thousand, six hundred forty".