1270481920 has 44 divisors (see below), whose sum is σ = 3047680044. Its totient is φ = 508190720.

The previous prime is 1270481903. The next prime is 1270481923. The reversal of 1270481920 is 291840721.

It can be written as a sum of positive squares in 2 ways, for example, as 506070016 + 764411904 = 22496^2 + 27648^2 .

It is a super-2 number, since 2×1270481920² = 3228248618093772800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1270481923) 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, 118951 + ... + 129190.

Almost surely, 2^1270481920 is an apocalyptic number.

1270481920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270481920 is an abundant number, since it is smaller than the sum of its proper divisors (1777198124).

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

1270481920 is an equidigital number, since it uses as much as digits as its factorization.

1270481920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248166 (or 248148 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1270481920 is about 35643.8202217439. The cubic root of 1270481920 is about 1083.0690936338.

The spelling of 1270481920 in words is "one billion, two hundred seventy million, four hundred eighty-one thousand, nine hundred twenty".