1272407852 has 12 divisors (see below), whose sum is σ = 2227553496. Its totient is φ = 635964000.

The previous prime is 1272407839. The next prime is 1272407861. The reversal of 1272407852 is 2587042721.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47774 + ... + 69477.

It is an arithmetic number, because the mean of its divisors is an integer number (185629458).

Almost surely, 2^1272407852 is an apocalyptic number.

It is an amenable number.

1272407852 is a deficient number, since it is larger than the sum of its proper divisors (955145644).

1272407852 is a wasteful number, since it uses less digits than its factorization.

1272407852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119968 (or 119966 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 1272407852 is about 35670.8263431057. The cubic root of 1272407852 is about 1083.6160945424.

The spelling of 1272407852 in words is "one billion, two hundred seventy-two million, four hundred seven thousand, eight hundred fifty-two".