1272889030 has 32 divisors (see below), whose sum is σ = 2634218496. Its totient is φ = 433801824.

The previous prime is 1272888997. The next prime is 1272889031. The reversal of 1272889030 is 309882721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272889031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42754 + ... + 66133.

It is an arithmetic number, because the mean of its divisors is an integer number (82319328).

Almost surely, 2^1272889030 is an apocalyptic number.

1272889030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272889030 is an abundant number, since it is smaller than the sum of its proper divisors (1361329466).

1272889030 is a wasteful number, since it uses less digits than its factorization.

1272889030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109068.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1272889030 is about 35677.5704049477. The cubic root of 1272889030 is about 1083.7526719539.

The spelling of 1272889030 in words is "one billion, two hundred seventy-two million, eight hundred eighty-nine thousand, thirty".