1113621696 has 280 divisors, whose sum is σ = 3673327680. Its totient is φ = 330739200.

The previous prime is 1113621661. The next prime is 1113621701. The reversal of 1113621696 is 6961263111.

1113621696 is a `hidden beast` number, since 11 + 13 + 621 + 6 + 9 + 6 = 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 self number, because there is not a number n which added to its sum of digits gives 1113621696.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3364251 + ... + 3364581.

Almost surely, 2^1113621696 is an apocalyptic number.

1113621696 is a gapful number since it is divisible by the number (16) 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 1113621696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1836663840).

1113621696 is an abundant number, since it is smaller than the sum of its proper divisors (2559705984).

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

1113621696 is a wasteful number, since it uses less digits than its factorization.

1113621696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 406 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 1113621696 is about 33370.9708579178. The cubic root of 1113621696 is about 1036.5236789353.

The spelling of 1113621696 in words is "one billion, one hundred thirteen million, six hundred twenty-one thousand, six hundred ninety-six".