1113647472 has 240 divisors, whose sum is σ = 3716524032. Its totient is φ = 304611840.

The previous prime is 1113647471. The next prime is 1113647519. The reversal of 1113647472 is 2747463111.

1113647472 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 647 + 4 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113647471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4905823 + ... + 4906049.

Almost surely, 2^1113647472 is an apocalyptic number.

1113647472 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 1113647472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858262016).

1113647472 is an abundant number, since it is smaller than the sum of its proper divisors (2602876560).

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

1113647472 is a wasteful number, since it uses less digits than its factorization.

1113647472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 427 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 1113647472 is about 33371.3570596103. The cubic root of 1113647472 is about 1036.5316760341.

The spelling of 1113647472 in words is "one billion, one hundred thirteen million, six hundred forty-seven thousand, four hundred seventy-two".