1117620140 has 96 divisors (see below), whose sum is σ = 3014323200. Its totient is φ = 338317056.

The previous prime is 1117620139. The next prime is 1117620151. The reversal of 1117620140 is 410267111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28511 + ... + 55209.

It is an arithmetic number, because the mean of its divisors is an integer number (31399200).

Almost surely, 2^1117620140 is an apocalyptic number.

1117620140 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 1117620140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1507161600).

1117620140 is an abundant number, since it is smaller than the sum of its proper divisors (1896703060).

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

1117620140 is a wasteful number, since it uses less digits than its factorization.

1117620140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26751 (or 26749 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 1117620140 is about 33430.8261937990. The cubic root of 1117620140 is about 1037.7627387030.

Adding to 1117620140 its reverse (410267111), we get a palindrome (1527887251).

The spelling of 1117620140 in words is "one billion, one hundred seventeen million, six hundred twenty thousand, one hundred forty".