1670239872 has 256 divisors, whose sum is σ = 5752800000. Its totient is φ = 476872704.

The previous prime is 1670239853. The next prime is 1670239939. The reversal of 1670239872 is 2789320761.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1184704 + ... + 1186112.

It is an arithmetic number, because the mean of its divisors is an integer number (22471875).

Almost surely, 2^1670239872 is an apocalyptic number.

1670239872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1670239872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2876400000).

1670239872 is an abundant number, since it is smaller than the sum of its proper divisors (4082560128).

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

1670239872 is an equidigital number, since it uses as much as digits as its factorization.

1670239872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1670239872 is about 40868.5682646212. The cubic root of 1670239872 is about 1186.4777973761.

The spelling of 1670239872 in words is "one billion, six hundred seventy million, two hundred thirty-nine thousand, eight hundred seventy-two".