1376645674 has 16 divisors (see below), whose sum is σ = 2076165000. Its totient is φ = 684601344.

The previous prime is 1376645671. The next prime is 1376645687. The reversal of 1376645674 is 4765466731.

It can be written as a sum of positive squares in 4 ways, for example, as 1228853025 + 147792649 = 35055^2 + 12157^2 .

It is not an unprimeable number, because it can be changed into a prime (1376645671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300352 + ... + 304900.

Almost surely, 2^1376645674 is an apocalyptic number.

1376645674 is a deficient number, since it is larger than the sum of its proper divisors (699519326).

1376645674 is a wasteful number, since it uses less digits than its factorization.

1376645674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337.

The product of its digits is 2540160, while the sum is 49.

The square root of 1376645674 is about 37103.1760635124. The cubic root of 1376645674 is about 1112.4334982594.

The spelling of 1376645674 in words is "one billion, three hundred seventy-six million, six hundred forty-five thousand, six hundred seventy-four".