42399052 has 12 divisors (see below), whose sum is σ = 75456360. Its totient is φ = 20840096.

The previous prime is 42399001. The next prime is 42399061. The reversal of 42399052 is 25099324.

42399052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42399052² = 3595359220997408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42398999 and 42399017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89593 + ... + 90064.

It is an arithmetic number, because the mean of its divisors is an integer number (6288030).

Almost surely, 2^42399052 is an apocalyptic number.

It is an amenable number.

42399052 is a deficient number, since it is larger than the sum of its proper divisors (33057308).

42399052 is a wasteful number, since it uses less digits than its factorization.

42399052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179720 (or 179718 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 42399052 is about 6511.4554440616. The cubic root of 42399052 is about 348.7000814118.

The spelling of 42399052 in words is "forty-two million, three hundred ninety-nine thousand, fifty-two".