1272930830 has 16 divisors (see below), whose sum is σ = 2301554304. Its totient is φ = 506888160.

The previous prime is 1272930829. The next prime is 1272930847. The reversal of 1272930830 is 380392721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283181 + ... + 287640.

It is an arithmetic number, because the mean of its divisors is an integer number (143847144).

Almost surely, 2^1272930830 is an apocalyptic number.

1272930830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272930830 is a deficient number, since it is larger than the sum of its proper divisors (1028623474).

1272930830 is a wasteful number, since it uses less digits than its factorization.

1272930830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571051.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1272930830 is about 35678.1562023600. The cubic root of 1272930830 is about 1083.7645348277.

The spelling of 1272930830 in words is "one billion, two hundred seventy-two million, nine hundred thirty thousand, eight hundred thirty".