42299885 has 8 divisors (see below), whose sum is σ = 50794776. Its totient is φ = 33816640.

The previous prime is 42299867. The next prime is 42299891. The reversal of 42299885 is 58899224.

It can be written as a sum of positive squares in 4 ways, for example, as 1378276 + 40921609 = 1174^2 + 6397^2 .

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

It is not a de Polignac number, because 42299885 - 2⁶ = 42299821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12827 + ... + 15783.

It is an arithmetic number, because the mean of its divisors is an integer number (6349347).

Almost surely, 2^42299885 is an apocalyptic number.

It is an amenable number.

42299885 is a deficient number, since it is larger than the sum of its proper divisors (8494891).

42299885 is a wasteful number, since it uses less digits than its factorization.

42299885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5823.

The product of its digits is 414720, while the sum is 47.

The square root of 42299885 is about 6503.8361756736. The cubic root of 42299885 is about 348.4280113713.

The spelling of 42299885 in words is "forty-two million, two hundred ninety-nine thousand, eight hundred eighty-five".