1377631446 has 16 divisors (see below), whose sum is σ = 2755628208. Its totient is φ = 459149600.

The previous prime is 1377631439. The next prime is 1377631459. The reversal of 1377631446 is 6441367731.

It is a junction number, because it is equal to n+sod(n) for n = 1377631398 and 1377631407.

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, 74356 + ... + 91016.

It is an arithmetic number, because the mean of its divisors is an integer number (172226763).

Almost surely, 2^1377631446 is an apocalyptic number.

1377631446 is an abundant number, since it is smaller than the sum of its proper divisors (1377996762).

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

1377631446 is a wasteful number, since it uses less digits than its factorization.

1377631446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30447.

The product of its digits is 254016, while the sum is 42.

The square root of 1377631446 is about 37116.4578859567. The cubic root of 1377631446 is about 1112.6989609395.

The spelling of 1377631446 in words is "one billion, three hundred seventy-seven million, six hundred thirty-one thousand, four hundred forty-six".