1272755470 has 64 divisors (see below), whose sum is σ = 2763072000. Its totient is φ = 412352640.

The previous prime is 1272755461. The next prime is 1272755479. The reversal of 1272755470 is 745572721.

It is an interprime number because it is at equal distance from previous prime (1272755461) and next prime (1272755479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272755479) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 652056 + ... + 654004.

It is an arithmetic number, because the mean of its divisors is an integer number (43173000).

Almost surely, 2^1272755470 is an apocalyptic number.

1272755470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272755470 is an abundant number, since it is smaller than the sum of its proper divisors (1490316530).

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

1272755470 is a wasteful number, since it uses less digits than its factorization.

1272755470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473.

The product of its (nonzero) digits is 137200, while the sum is 40.

The square root of 1272755470 is about 35675.6985916184. The cubic root of 1272755470 is about 1083.7147657772.

The spelling of 1272755470 in words is "one billion, two hundred seventy-two million, seven hundred fifty-five thousand, four hundred seventy".