42312099 has 16 divisors (see below), whose sum is σ = 59927040. Its totient is φ = 26463360.

The previous prime is 42312097. The next prime is 42312103. The reversal of 42312099 is 99021324.

It is not a de Polignac number, because 42312099 - 2¹ = 42312097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42312097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17154 + ... + 19464.

It is an arithmetic number, because the mean of its divisors is an integer number (3745440).

Almost surely, 2^42312099 is an apocalyptic number.

42312099 is a deficient number, since it is larger than the sum of its proper divisors (17614941).

42312099 is a wasteful number, since it uses less digits than its factorization.

42312099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 42312099 is about 6504.7750921919. The cubic root of 42312099 is about 348.4615440881.

The spelling of 42312099 in words is "forty-two million, three hundred twelve thousand, ninety-nine".