1270309972 has 12 divisors (see below), whose sum is σ = 2353809780. Its totient is φ = 597792896.

The previous prime is 1270309969. The next prime is 1270309973. The reversal of 1270309972 is 2799030721.

It can be written as a sum of positive squares in 2 ways, for example, as 1081357456 + 188952516 = 32884^2 + 13746^2 .

It is a super-2 number, since 2×1270309972² = 3227374849925281568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270309973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9340447 + ... + 9340582.

It is an arithmetic number, because the mean of its divisors is an integer number (196150815).

Almost surely, 2^1270309972 is an apocalyptic number.

It is an amenable number.

1270309972 is a deficient number, since it is larger than the sum of its proper divisors (1083499808).

1270309972 is a wasteful number, since it uses less digits than its factorization.

1270309972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18681050 (or 18681048 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 1270309972 is about 35641.4081091081. The cubic root of 1270309972 is about 1083.0202302947.

The spelling of 1270309972 in words is "one billion, two hundred seventy million, three hundred nine thousand, nine hundred seventy-two".