1252730670 has 16 divisors (see below), whose sum is σ = 3006553680. Its totient is φ = 334061504.

The previous prime is 1252730669. The next prime is 1252730681. The reversal of 1252730670 is 760372521.

It is a Curzon number.

It is a congruent number.

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, 20878815 + ... + 20878874.

It is an arithmetic number, because the mean of its divisors is an integer number (187909605).

Almost surely, 2^1252730670 is an apocalyptic number.

1252730670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252730670 is an abundant number, since it is smaller than the sum of its proper divisors (1753823010).

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

1252730670 is a wasteful number, since it uses less digits than its factorization.

1252730670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41757699.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 1252730670 is about 35393.9354974832. The cubic root of 1252730670 is about 1078.0011812099.

The spelling of 1252730670 in words is "one billion, two hundred fifty-two million, seven hundred thirty thousand, six hundred seventy".