1270879040 has 56 divisors (see below), whose sum is σ = 3029727240. Its totient is φ = 507772928.

The previous prime is 1270879033. The next prime is 1270879109. The reversal of 1270879040 is 409780721.

It can be written as a sum of positive squares in 4 ways, for example, as 92467456 + 1178411584 = 9616^2 + 34328^2 .

It is a super-2 number, since 2×1270879040² = 3230267068622643200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1270878985 and 1270879003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380096 + ... + 383424.

Almost surely, 2^1270879040 is an apocalyptic number.

1270879040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270879040 is an abundant number, since it is smaller than the sum of its proper divisors (1758848200).

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

1270879040 is a wasteful number, since it uses less digits than its factorization.

1270879040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 1270879040 is about 35649.3904576221. The cubic root of 1270879040 is about 1083.1819284004.

The spelling of 1270879040 in words is "one billion, two hundred seventy million, eight hundred seventy-nine thousand, forty".