4491742500 has 540 divisors, whose sum is σ = 17329952640. Its totient is φ = 960336000.

The previous prime is 4491742441. The next prime is 4491742543. The reversal of 4491742500 is 52471944.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 56857461 + ... + 56857539.

Almost surely, 2^4491742500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491742500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8664976320).

4491742500 is an abundant number, since it is smaller than the sum of its proper divisors (12838210140).

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

4491742500 is a wasteful number, since it uses less digits than its factorization.

4491742500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 4491742500 is about 67020.4632929376. The cubic root of 4491742500 is about 1649.9531667148.

The spelling of 4491742500 in words is "four billion, four hundred ninety-one million, seven hundred forty-two thousand, five hundred".