99464640 has 112 divisors (see below), whose sum is σ = 344545920. Its totient is φ = 24110080.

The previous prime is 99464593. The next prime is 99464683. The reversal of 99464640 is 4646499.

It is a super-2 number, since 2×99464640² = 19786429220659200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99464592 and 99464601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5851 + ... + 15269.

Almost surely, 2^99464640 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 99464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172272960).

99464640 is an abundant number, since it is smaller than the sum of its proper divisors (245081280).

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

99464640 is a wasteful number, since it uses less digits than its factorization.

99464640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450 (or 9440 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 99464640 is about 9973.1960774869. The cubic root of 99464640 is about 463.3290938084.

It can be divided in two parts, 9 and 9464640, that added together give a palindrome (9464649).

The spelling of 99464640 in words is "ninety-nine million, four hundred sixty-four thousand, six hundred forty".