1396404507 has 8 divisors (see below), whose sum is σ = 1893430080. Its totient is φ = 915157640.

The previous prime is 1396404481. The next prime is 1396404509. The reversal of 1396404507 is 7054046931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396404507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1396404509) 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 7 ways as a sum of consecutive naturals, for example, 3944469 + ... + 3944822.

It is an arithmetic number, because the mean of its divisors is an integer number (236678760).

Almost surely, 2^1396404507 is an apocalyptic number.

1396404507 is a deficient number, since it is larger than the sum of its proper divisors (497025573).

1396404507 is an equidigital number, since it uses as much as digits as its factorization.

1396404507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7889353.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1396404507 is about 37368.4961832825. The cubic root of 1396404507 is about 1117.7304452961.

The spelling of 1396404507 in words is "one billion, three hundred ninety-six million, four hundred four thousand, five hundred seven".