1275014440 has 32 divisors (see below), whose sum is σ = 3278609280. Its totient is φ = 437147712.

The previous prime is 1275014401. The next prime is 1275014441. The reversal of 1275014440 is 444105721.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1275014399 and 1275014408.

It is not an unprimeable number, because it can be changed into a prime (1275014441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276532 + ... + 2277091.

It is an arithmetic number, because the mean of its divisors is an integer number (102456540).

Almost surely, 2^1275014440 is an apocalyptic number.

1275014440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275014440 is an abundant number, since it is smaller than the sum of its proper divisors (2003594840).

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

1275014440 is a wasteful number, since it uses less digits than its factorization.

1275014440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553641 (or 4553637 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 1275014440 is about 35707.3443425859. The cubic root of 1275014440 is about 1084.3555362135.

The spelling of 1275014440 in words is "one billion, two hundred seventy-five million, fourteen thousand, four hundred forty".