1377644412 has 24 divisors (see below), whose sum is σ = 3215148496. Its totient is φ = 459122688.

The previous prime is 1377644329. The next prime is 1377644461. The reversal of 1377644412 is 2144467731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79698 + ... + 95430.

Almost surely, 2^1377644412 is an apocalyptic number.

1377644412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1377644412 is an abundant number, since it is smaller than the sum of its proper divisors (1837504084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377644412 is a wasteful number, since it uses less digits than its factorization.

1377644412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23037 (or 23035 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 1377644412 is about 37116.6325519975. The cubic root of 1377644412 is about 1112.7024517641.

The spelling of 1377644412 in words is "one billion, three hundred seventy-seven million, six hundred forty-four thousand, four hundred twelve".