99263840 has 72 divisors (see below), whose sum is σ = 254006928. Its totient is φ = 36641280.

The previous prime is 99263821. The next prime is 99263863. The reversal of 99263840 is 4836299.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25205 + ... + 28875.

It is an arithmetic number, because the mean of its divisors is an integer number (3527874).

Almost surely, 2^99263840 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 99263840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127003464).

99263840 is an abundant number, since it is smaller than the sum of its proper divisors (154743088).

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

99263840 is a wasteful number, since it uses less digits than its factorization.

99263840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712 (or 3691 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 99263840 is about 9963.1240080609. The cubic root of 99263840 is about 463.0170929475.

The spelling of 99263840 in words is "ninety-nine million, two hundred sixty-three thousand, eight hundred forty".