1270426320 has 240 divisors, whose sum is σ = 4545994752. Its totient is φ = 316846080.

The previous prime is 1270426319. The next prime is 1270426349. The reversal of 1270426320 is 236240721.

1270426320 is a `hidden beast` number, since 1 + 27 + 0 + 4 + 2 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×1270426320² = 3227966069097484800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3316849 + ... + 3317231.

Almost surely, 2^1270426320 is an apocalyptic number.

1270426320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1270426320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2272997376).

1270426320 is an abundant number, since it is smaller than the sum of its proper divisors (3275568432).

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

1270426320 is a wasteful number, since it uses less digits than its factorization.

1270426320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1270426320 is about 35643.0402743649. The cubic root of 1270426320 is about 1083.0532939809.

The spelling of 1270426320 in words is "one billion, two hundred seventy million, four hundred twenty-six thousand, three hundred twenty".