1396263892 has 24 divisors (see below), whose sum is σ = 2489106312. Its totient is φ = 685142400.

The previous prime is 1396263889. The next prime is 1396263923. The reversal of 1396263892 is 2983626931.

It can be written as a sum of positive squares in 4 ways, for example, as 15100996 + 1381162896 = 3886^2 + 37164^2 .

It is a super-2 number, since 2×1396263892² = 3899105712205975328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106278 + ... + 118690.

It is an arithmetic number, because the mean of its divisors is an integer number (103712763).

Almost surely, 2^1396263892 is an apocalyptic number.

It is an amenable number.

1396263892 is a deficient number, since it is larger than the sum of its proper divisors (1092842420).

1396263892 is a wasteful number, since it uses less digits than its factorization.

1396263892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12939 (or 12937 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The square root of 1396263892 is about 37366.6146713881. The cubic root of 1396263892 is about 1117.6929263342.

The spelling of 1396263892 in words is "one billion, three hundred ninety-six million, two hundred sixty-three thousand, eight hundred ninety-two".