1393040265 has 32 divisors (see below), whose sum is σ = 2366703360. Its totient is φ = 697257984.

The previous prime is 1393040261. The next prime is 1393040279. The reversal of 1393040265 is 5620403931.

1393040265 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1393040265 - 2² = 1393040261 is a prime.

It is a super-2 number, since 2×1393040265² = 3881122359822540450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1393040261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83937 + ... + 99153.

It is an arithmetic number, because the mean of its divisors is an integer number (73959480).

Almost surely, 2^1393040265 is an apocalyptic number.

1393040265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1393040265 is a deficient number, since it is larger than the sum of its proper divisors (973663095).

1393040265 is a wasteful number, since it uses less digits than its factorization.

1393040265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15601.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1393040265 is about 37323.4546230651. The cubic root of 1393040265 is about 1116.8321049407.

The spelling of 1393040265 in words is "one billion, three hundred ninety-three million, forty thousand, two hundred sixty-five".