1117497920 has 504 divisors, whose sum is σ = 3697102080. Its totient is φ = 319334400.

The previous prime is 1117497893. The next prime is 1117498001. The reversal of 1117497920 is 297947111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36048305 + ... + 36048335.

It is an arithmetic number, because the mean of its divisors is an integer number (7335520).

Almost surely, 2^1117497920 is an apocalyptic number.

1117497920 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 1117497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848551040).

1117497920 is an abundant number, since it is smaller than the sum of its proper divisors (2579604160).

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

1117497920 is a wasteful number, since it uses less digits than its factorization.

1117497920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 1117497920 is about 33428.9981901941. The cubic root of 1117497920 is about 1037.7249083224.

The spelling of 1117497920 in words is "one billion, one hundred seventeen million, four hundred ninety-seven thousand, nine hundred twenty".