1253683984 has 20 divisors (see below), whose sum is σ = 2776014784. Its totient is φ = 537293088.

The previous prime is 1253683919. The next prime is 1253683997. The reversal of 1253683984 is 4893863521.

It is a super-3 number, since 3×1253683984³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5596692 + ... + 5596915.

Almost surely, 2^1253683984 is an apocalyptic number.

1253683984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1253683984 is an abundant number, since it is smaller than the sum of its proper divisors (1522330800).

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

1253683984 is a wasteful number, since it uses less digits than its factorization.

1253683984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11193622 (or 11193616 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 1253683984 is about 35407.4001304812. The cubic root of 1253683984 is about 1078.2745608145.

The spelling of 1253683984 in words is "one billion, two hundred fifty-three million, six hundred eighty-three thousand, nine hundred eighty-four".