99595440 has 240 divisors, whose sum is σ = 399483360. Its totient is φ = 22740480.

The previous prime is 99595417. The next prime is 99595459. The reversal of 99595440 is 4459599.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105370 + ... + 106310.

It is an arithmetic number, because the mean of its divisors is an integer number (1664514).

Almost surely, 2^99595440 is an apocalyptic number.

99595440 is a gapful number since it is divisible by the number (90) 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 99595440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199741680).

99595440 is an abundant number, since it is smaller than the sum of its proper divisors (299887920).

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

99595440 is a wasteful number, since it uses less digits than its factorization.

99595440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 99595440 is about 9979.7514999122. The cubic root of 99595440 is about 463.5321036403.

The spelling of 99595440 in words is "ninety-nine million, five hundred ninety-five thousand, four hundred forty".