1672167172 has 24 divisors (see below), whose sum is σ = 3210857496. Its totient is φ = 757206528.

The previous prime is 1672167169. The next prime is 1672167223. The reversal of 1672167172 is 2717612761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 448846596 + 1223320576 = 21186^2 + 34976^2 .

It is a super-2 number, since 2×1672167172² = 5592286102228955168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300613 + ... + 306124.

It is an arithmetic number, because the mean of its divisors is an integer number (133785729).

Almost surely, 2^1672167172 is an apocalyptic number.

It is an amenable number.

1672167172 is a deficient number, since it is larger than the sum of its proper divisors (1538690324).

1672167172 is a wasteful number, since it uses less digits than its factorization.

1672167172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606807 (or 606805 counting only the distinct ones).

The product of its digits is 49392, while the sum is 40.

The square root of 1672167172 is about 40892.1407118776. The cubic root of 1672167172 is about 1186.9339832839.

The spelling of 1672167172 in words is "one billion, six hundred seventy-two million, one hundred sixty-seven thousand, one hundred seventy-two".