1672005880 has 16 divisors (see below), whose sum is σ = 3762013320. Its totient is φ = 668802336.

The previous prime is 1672005877. The next prime is 1672005941. The reversal of 1672005880 is 885002761.

It is a congruent number.

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, 20900034 + ... + 20900113.

Almost surely, 2^1672005880 is an apocalyptic number.

1672005880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672005880 is an abundant number, since it is smaller than the sum of its proper divisors (2090007440).

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

1672005880 is a wasteful number, since it uses less digits than its factorization.

1672005880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800158 (or 41800154 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1672005880 is about 40890.1685005088. The cubic root of 1672005880 is about 1186.8958194139.

The spelling of 1672005880 in words is "one billion, six hundred seventy-two million, five thousand, eight hundred eighty".