1272761046 has 16 divisors (see below), whose sum is σ = 2828358000. Its totient is φ = 424253664.

The previous prime is 1272761029. The next prime is 1272761047. The reversal of 1272761046 is 6401672721.

1272761046 is a `hidden beast` number, since 12 + 7 + 27 + 610 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1272761046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272761047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11784771 + ... + 11784878.

It is an arithmetic number, because the mean of its divisors is an integer number (176772375).

Almost surely, 2^1272761046 is an apocalyptic number.

1272761046 is an abundant number, since it is smaller than the sum of its proper divisors (1555596954).

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

1272761046 is a wasteful number, since it uses less digits than its factorization.

1272761046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569660 (or 23569654 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1272761046 is about 35675.7767399674. The cubic root of 1272761046 is about 1083.7163483762.

The spelling of 1272761046 in words is "one billion, two hundred seventy-two million, seven hundred sixty-one thousand, forty-six".