1272669120 has 168 divisors, whose sum is σ = 4568013216. Its totient is φ = 324605952.

The previous prime is 1272669119. The next prime is 1272669179. The reversal of 1272669120 is 219662721.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56634 + ... + 75846.

Almost surely, 2^1272669120 is an apocalyptic number.

1272669120 is a gapful number since it is divisible by the number (10) 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 1272669120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2284006608).

1272669120 is an abundant number, since it is smaller than the sum of its proper divisors (3295344096).

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

1272669120 is a wasteful number, since it uses less digits than its factorization.

1272669120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19259 (or 19246 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1272669120 is about 35674.4883635351. The cubic root of 1272669120 is about 1083.6902570404.

The spelling of 1272669120 in words is "one billion, two hundred seventy-two million, six hundred sixty-nine thousand, one hundred twenty".