1392849845 has 16 divisors (see below), whose sum is σ = 1732872960. Its totient is φ = 1073481024.

The previous prime is 1392849811. The next prime is 1392849863. The reversal of 1392849845 is 5489482931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1392849845 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56762 + ... + 77508.

It is an arithmetic number, because the mean of its divisors is an integer number (108304560).

Almost surely, 2^1392849845 is an apocalyptic number.

It is an amenable number.

1392849845 is a deficient number, since it is larger than the sum of its proper divisors (340023115).

1392849845 is a wasteful number, since it uses less digits than its factorization.

1392849845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244.

The product of its digits is 2488320, while the sum is 53.

The square root of 1392849845 is about 37320.9035930268. The cubic root of 1392849845 is about 1116.7812146050.

The spelling of 1392849845 in words is "one billion, three hundred ninety-two million, eight hundred forty-nine thousand, eight hundred forty-five".