1295425940 has 36 divisors (see below), whose sum is σ = 2817472476. Its totient is φ = 500295936.

The previous prime is 1295425931. The next prime is 1295425949. The reversal of 1295425940 is 495245921.

It is an interprime number because it is at equal distance from previous prime (1295425931) and next prime (1295425949).

It can be written as a sum of positive squares in 6 ways, for example, as 74063236 + 1221362704 = 8606^2 + 34948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295425949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21689 + ... + 55328.

Almost surely, 2^1295425940 is an apocalyptic number.

1295425940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1295425940 is an abundant number, since it is smaller than the sum of its proper divisors (1522046536).

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

1295425940 is a wasteful number, since it uses less digits than its factorization.

1295425940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77084 (or 77053 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1295425940 is about 35992.0260613375. The cubic root of 1295425940 is about 1090.1113541092. Note that the first 3 decimals are identical.

The spelling of 1295425940 in words is "one billion, two hundred ninety-five million, four hundred twenty-five thousand, nine hundred forty".