1113073920 has 576 divisors, whose sum is σ = 4662282240. Its totient is φ = 246177792.

The previous prime is 1113073873. The next prime is 1113073921. The reversal of 1113073920 is 293703111.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1113073921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10402507 + ... + 10402613.

It is an arithmetic number, because the mean of its divisors is an integer number (8094240).

Almost surely, 2^1113073920 is an apocalyptic number.

1113073920 is a gapful number since it is divisible by the number (10) 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 1113073920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2331141120).

1113073920 is an abundant number, since it is smaller than the sum of its proper divisors (3549208320).

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

1113073920 is a wasteful number, since it uses less digits than its factorization.

1113073920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1113073920 is about 33362.7624755505. The cubic root of 1113073920 is about 1036.3537002321.

The spelling of 1113073920 in words is "one billion, one hundred thirteen million, seventy-three thousand, nine hundred twenty".