1113756672 has 220 divisors, whose sum is σ = 3486057376. Its totient is φ = 316108800.

The previous prime is 1113756671. The next prime is 1113756691. The reversal of 1113756672 is 2766573111.

It is a self number, because there is not a number n which added to its sum of digits gives 1113756672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113756671) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7375797 + ... + 7375947.

Almost surely, 2^1113756672 is an apocalyptic number.

1113756672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113756672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743028688).

1113756672 is an abundant number, since it is smaller than the sum of its proper divisors (2372300704).

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

1113756672 is an frugal number, since it uses more digits than its factorization.

1113756672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 163 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 1113756672 is about 33372.9931531471. The cubic root of 1113756672 is about 1036.5655543671.

The spelling of 1113756672 in words is "one billion, one hundred thirteen million, seven hundred fifty-six thousand, six hundred seventy-two".