1396993275 has 72 divisors (see below), whose sum is σ = 2721236544. Its totient is φ = 682214400.

The previous prime is 1396993271. The next prime is 1396993277. The reversal of 1396993275 is 5723996931.

It is a happy number.

It is not a de Polignac number, because 1396993275 - 2² = 1396993271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1396993271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 136590 + ... + 146460.

It is an arithmetic number, because the mean of its divisors is an integer number (37794952).

Almost surely, 2^1396993275 is an apocalyptic number.

1396993275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1396993275 is a deficient number, since it is larger than the sum of its proper divisors (1324243269).

1396993275 is a wasteful number, since it uses less digits than its factorization.

1396993275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941 (or 9933 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 1396993275 is about 37376.3732189200. The cubic root of 1396993275 is about 1117.8875133108.

The spelling of 1396993275 in words is "one billion, three hundred ninety-six million, nine hundred ninety-three thousand, two hundred seventy-five".