1275840948 has 48 divisors (see below), whose sum is σ = 2997774080. Its totient is φ = 422319744.

The previous prime is 1275840941. The next prime is 1275840949. The reversal of 1275840948 is 8490485721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1275840897 and 1275840906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275840941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1538598 + ... + 1539426.

Almost surely, 2^1275840948 is an apocalyptic number.

It is an amenable number.

1275840948 is an abundant number, since it is smaller than the sum of its proper divisors (1721933132).

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

1275840948 is a wasteful number, since it uses less digits than its factorization.

1275840948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 1275840948 is about 35718.9158290114. The cubic root of 1275840948 is about 1084.5897910611.

The spelling of 1275840948 in words is "one billion, two hundred seventy-five million, eight hundred forty thousand, nine hundred forty-eight".