1672051720 has 32 divisors (see below), whose sum is σ = 3763321920. Its totient is φ = 668606400.

The previous prime is 1672051691. The next prime is 1672051721. The reversal of 1672051720 is 271502761.

It is not an unprimeable number, because it can be changed into a prime (1672051721) 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, 193819 + ... + 202261.

It is an arithmetic number, because the mean of its divisors is an integer number (117603810).

Almost surely, 2^1672051720 is an apocalyptic number.

1672051720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672051720 is an abundant number, since it is smaller than the sum of its proper divisors (2091270200).

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

1672051720 is a wasteful number, since it uses less digits than its factorization.

1672051720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405 (or 13401 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1672051720 is about 40890.7290226036. The cubic root of 1672051720 is about 1186.9066660279.

The spelling of 1672051720 in words is "one billion, six hundred seventy-two million, fifty-one thousand, seven hundred twenty".