99381340 has 12 divisors (see below), whose sum is σ = 208700856. Its totient is φ = 39752528.

The previous prime is 99381313. The next prime is 99381341. The reversal of 99381340 is 4318399.

It is a self number, because there is not a number n which added to its sum of digits gives 99381340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99381341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2484514 + ... + 2484553.

It is an arithmetic number, because the mean of its divisors is an integer number (17391738).

Almost surely, 2^99381340 is an apocalyptic number.

It is an amenable number.

99381340 is an abundant number, since it is smaller than the sum of its proper divisors (109319516).

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

99381340 is a wasteful number, since it uses less digits than its factorization.

99381340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969076 (or 4969074 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 99381340 is about 9969.0190089096. The cubic root of 99381340 is about 463.1997141855.

The spelling of 99381340 in words is "ninety-nine million, three hundred eighty-one thousand, three hundred forty".