99744012 has 18 divisors (see below), whose sum is σ = 252130788. Its totient is φ = 33247992.

The previous prime is 99743953. The next prime is 99744121. The reversal of 99744012 is 21044799.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×99744012² = 19897735859712288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2770667 = 99744012 / (9 + 9 + 7 + 4 + 4 + 0 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1385298 + ... + 1385369.

It is an arithmetic number, because the mean of its divisors is an integer number (14007266).

Almost surely, 2^99744012 is an apocalyptic number.

It is an amenable number.

99744012 is an abundant number, since it is smaller than the sum of its proper divisors (152386776).

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

99744012 is a wasteful number, since it uses less digits than its factorization.

99744012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770677 (or 2770672 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 99744012 is about 9987.1923982669. The cubic root of 99744012 is about 463.7624812405.

The spelling of 99744012 in words is "ninety-nine million, seven hundred forty-four thousand, twelve".