42279099 has 8 divisors (see below), whose sum is σ = 56953680. Its totient is φ = 27895296.

The previous prime is 42279079. The next prime is 42279109. The reversal of 42279099 is 99097224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42279099 - 2⁸ = 42278843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42279099.

It is not an unprimeable number, because it can be changed into a prime (42279059) 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 7 ways as a sum of consecutive naturals, for example, 72354 + ... + 72935.

It is an arithmetic number, because the mean of its divisors is an integer number (7119210).

Almost surely, 2^42279099 is an apocalyptic number.

42279099 is a deficient number, since it is larger than the sum of its proper divisors (14674581).

42279099 is a wasteful number, since it uses less digits than its factorization.

42279099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145389.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 42279099 is about 6502.2379993353. The cubic root of 42279099 is about 348.3709299611.

The spelling of 42279099 in words is "forty-two million, two hundred seventy-nine thousand, ninety-nine".