99241780 has 72 divisors (see below), whose sum is σ = 239170176. Its totient is φ = 34499520.

The previous prime is 99241777. The next prime is 99241781. The reversal of 99241780 is 8714299.

99241780 = T₂₄₃ + T₂₄₄ + ... + T₈₄₇.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99241781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54769 + ... + 56551.

It is an arithmetic number, because the mean of its divisors is an integer number (3321808).

Almost surely, 2^99241780 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 99241780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119585088).

99241780 is an abundant number, since it is smaller than the sum of its proper divisors (139928396).

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

99241780 is a wasteful number, since it uses less digits than its factorization.

99241780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 99241780 is about 9962.0168640692. The cubic root of 99241780 is about 462.9827907154.

The spelling of 99241780 in words is "ninety-nine million, two hundred forty-one thousand, seven hundred eighty".