1377944356 has 24 divisors (see below), whose sum is σ = 2434320000. Its totient is φ = 682446912.

The previous prime is 1377944339. The next prime is 1377944377. The reversal of 1377944356 is 6534497731.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273145 + ... + 278143.

It is an arithmetic number, because the mean of its divisors is an integer number (101430000).

Almost surely, 2^1377944356 is an apocalyptic number.

It is an amenable number.

1377944356 is a deficient number, since it is larger than the sum of its proper divisors (1056375644).

1377944356 is a wasteful number, since it uses less digits than its factorization.

1377944356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643 (or 5641 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 49.

The square root of 1377944356 is about 37120.6728926080. The cubic root of 1377944356 is about 1112.7831993075.

The spelling of 1377944356 in words is "one billion, three hundred seventy-seven million, nine hundred forty-four thousand, three hundred fifty-six".