1376653444 has 6 divisors (see below), whose sum is σ = 2409143534. Its totient is φ = 688326720.

The previous prime is 1376653393. The next prime is 1376653483. The reversal of 1376653444 is 4443566731.

It can be written as a sum of positive squares in only one way, i.e., 1371813444 + 4840000 = 37038^2 + 2200^2 .

It is a super-2 number, since 2×1376653444² = 3790349409754122272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1376653444.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172081677 + ... + 172081684.

Almost surely, 2^1376653444 is an apocalyptic number.

It is an amenable number.

1376653444 is a deficient number, since it is larger than the sum of its proper divisors (1032490090).

1376653444 is a wasteful number, since it uses less digits than its factorization.

1376653444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344163365 (or 344163363 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The square root of 1376653444 is about 37103.2807713819. The cubic root of 1376653444 is about 1112.4355911707.

The spelling of 1376653444 in words is "one billion, three hundred seventy-six million, six hundred fifty-three thousand, four hundred forty-four".