1270299220 has 24 divisors (see below), whose sum is σ = 2694044808. Its totient is φ = 503088000.

The previous prime is 1270299161. The next prime is 1270299229. The reversal of 1270299220 is 229920721.

It can be written as a sum of positive squares in 4 ways, for example, as 804516496 + 465782724 = 28364^2 + 21582^2 .

It is a super-2 number, since 2×1270299220² = 3227320216665216800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270299229) 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 7 ways as a sum of consecutive naturals, for example, 312411 + ... + 316450.

It is an arithmetic number, because the mean of its divisors is an integer number (112251867).

Almost surely, 2^1270299220 is an apocalyptic number.

1270299220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270299220 is an abundant number, since it is smaller than the sum of its proper divisors (1423745588).

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

1270299220 is a wasteful number, since it uses less digits than its factorization.

1270299220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628971 (or 628969 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1270299220 is about 35641.2572729975. The cubic root of 1270299220 is about 1083.0171746976.

The spelling of 1270299220 in words is "one billion, two hundred seventy million, two hundred ninety-nine thousand, two hundred twenty".