1253727396 has 72 divisors (see below), whose sum is σ = 3302636064. Its totient is φ = 415860480.

The previous prime is 1253727361. The next prime is 1253727439. The reversal of 1253727396 is 6937273521.

1253727396 is a `hidden beast` number, since 1 + 2 + 537 + 27 + 3 + 96 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202036 + ... + 208148.

Almost surely, 2^1253727396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253727396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651318032).

1253727396 is an abundant number, since it is smaller than the sum of its proper divisors (2048908668).

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

1253727396 is a wasteful number, since it uses less digits than its factorization.

1253727396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343 (or 6329 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 1253727396 is about 35408.0131608652. The cubic root of 1253727396 is about 1078.2870066715.

The spelling of 1253727396 in words is "one billion, two hundred fifty-three million, seven hundred twenty-seven thousand, three hundred ninety-six".