1253886040 has 32 divisors (see below), whose sum is σ = 3077721360. Its totient is φ = 455958400.

The previous prime is 1253886037. The next prime is 1253886041. The reversal of 1253886040 is 406883521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253886041) 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, 1424431 + ... + 1425310.

Almost surely, 2^1253886040 is an apocalyptic number.

1253886040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253886040 is an abundant number, since it is smaller than the sum of its proper divisors (1823835320).

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

1253886040 is a wasteful number, since it uses less digits than its factorization.

1253886040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849763 (or 2849759 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1253886040 is about 35410.2533173656. The cubic root of 1253886040 is about 1078.3324861353.

The spelling of 1253886040 in words is "one billion, two hundred fifty-three million, eight hundred eighty-six thousand, forty".