1396359849 has 4 divisors (see below), whose sum is σ = 1861813136. Its totient is φ = 930906564.

The previous prime is 1396359827. The next prime is 1396359851. The reversal of 1396359849 is 9489536931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1396359849 - 2⁵ = 1396359817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396359649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232726639 + ... + 232726644.

It is an arithmetic number, because the mean of its divisors is an integer number (465453284).

Almost surely, 2^1396359849 is an apocalyptic number.

It is an amenable number.

1396359849 is a deficient number, since it is larger than the sum of its proper divisors (465453287).

1396359849 is an equidigital number, since it uses as much as digits as its factorization.

1396359849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465453286.

The product of its digits is 6298560, while the sum is 57.

The square root of 1396359849 is about 37367.8986430867. The cubic root of 1396359849 is about 1117.7185299000.

The spelling of 1396359849 in words is "one billion, three hundred ninety-six million, three hundred fifty-nine thousand, eight hundred forty-nine".