42290029 has 4 divisors (see below), whose sum is σ = 44515840. Its totient is φ = 40064220.

The previous prime is 42290021. The next prime is 42290047. The reversal of 42290029 is 92009224.

It is a happy number.

42290029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42290029 - 2³ = 42290021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42289979 and 42290006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42290021) by changing a digit.

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, 1112877 + ... + 1112914.

It is an arithmetic number, because the mean of its divisors is an integer number (11128960).

Almost surely, 2^42290029 is an apocalyptic number.

It is an amenable number.

42290029 is a deficient number, since it is larger than the sum of its proper divisors (2225811).

42290029 is a wasteful number, since it uses less digits than its factorization.

42290029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225810.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 42290029 is about 6503.0784248693. The cubic root of 42290029 is about 348.4009476789.

The spelling of 42290029 in words is "forty-two million, two hundred ninety thousand, twenty-nine".