99743740 has 24 divisors (see below), whose sum is σ = 216220032. Its totient is φ = 38610240.

The previous prime is 99743719. The next prime is 99743747. The reversal of 99743740 is 4734799.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99743747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79819 + ... + 81058.

It is an arithmetic number, because the mean of its divisors is an integer number (9009168).

Almost surely, 2^99743740 is an apocalyptic number.

It is an amenable number.

99743740 is an abundant number, since it is smaller than the sum of its proper divisors (116476292).

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

99743740 is a wasteful number, since it uses less digits than its factorization.

99743740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160917 (or 160915 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 99743740 is about 9987.1787808169. The cubic root of 99743740 is about 463.7620596830.

The spelling of 99743740 in words is "ninety-nine million, seven hundred forty-three thousand, seven hundred forty".