1399169374 has 4 divisors (see below), whose sum is σ = 2098754064. Its totient is φ = 699584686.

The previous prime is 1399169339. The next prime is 1399169417. The reversal of 1399169374 is 4739619931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349792342 + ... + 349792345.

It is an arithmetic number, because the mean of its divisors is an integer number (524688516).

Almost surely, 2^1399169374 is an apocalyptic number.

1399169374 is a deficient number, since it is larger than the sum of its proper divisors (699584690).

1399169374 is an equidigital number, since it uses as much as digits as its factorization.

1399169374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699584689.

The product of its digits is 1102248, while the sum is 52.

The square root of 1399169374 is about 37405.4725140587. The cubic root of 1399169374 is about 1118.4676573313.

The spelling of 1399169374 in words is "one billion, three hundred ninety-nine million, one hundred sixty-nine thousand, three hundred seventy-four".