1667672744 has 16 divisors (see below), whose sum is σ = 3162021300. Its totient is φ = 824467072.

The previous prime is 1667672689. The next prime is 1667672759. The reversal of 1667672744 is 4472767661.

It can be written as a sum of positive squares in 2 ways, for example, as 1494750244 + 172922500 = 38662^2 + 13150^2 .

It is a super-2 number, since 2×1667672744² = 5562264762160979072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1667672692 and 1667672701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170407 + ... + 1171830.

Almost surely, 2^1667672744 is an apocalyptic number.

It is an amenable number.

1667672744 is a deficient number, since it is larger than the sum of its proper divisors (1494348556).

1667672744 is a wasteful number, since it uses less digits than its factorization.

1667672744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342332 (or 2342328 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 50.

The square root of 1667672744 is about 40837.1490679749. The cubic root of 1667672744 is about 1185.8696208247.

The spelling of 1667672744 in words is "one billion, six hundred sixty-seven million, six hundred seventy-two thousand, seven hundred forty-four".