42399235 has 8 divisors (see below), whose sum is σ = 53091360. Its totient is φ = 32444544.

The previous prime is 42399223. The next prime is 42399239. The reversal of 42399235 is 53299324.

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

It is a cyclic number.

It is not a de Polignac number, because 42399235 - 2⁷ = 42399107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42399194 and 42399203.

It is not an unprimeable number, because it can be changed into a prime (42399239) 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, 184230 + ... + 184459.

It is an arithmetic number, because the mean of its divisors is an integer number (6636420).

Almost surely, 2^42399235 is an apocalyptic number.

42399235 is a deficient number, since it is larger than the sum of its proper divisors (10692125).

42399235 is a wasteful number, since it uses less digits than its factorization.

42399235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368717.

The product of its digits is 58320, while the sum is 37.

The square root of 42399235 is about 6511.4694962044. The cubic root of 42399235 is about 348.7005830899.

The spelling of 42399235 in words is "forty-two million, three hundred ninety-nine thousand, two hundred thirty-five".