42290929 has 4 divisors (see below), whose sum is σ = 43190784. Its totient is φ = 41391076.

The previous prime is 42290923. The next prime is 42290939. The reversal of 42290929 is 92909224.

42290929 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 a de Polignac number, because none of the positive numbers 2^k-42290929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42290923) 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, 449857 + ... + 449950.

It is an arithmetic number, because the mean of its divisors is an integer number (10797696).

Almost surely, 2^42290929 is an apocalyptic number.

It is an amenable number.

42290929 is a deficient number, since it is larger than the sum of its proper divisors (899855).

42290929 is an equidigital number, since it uses as much as digits as its factorization.

42290929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899854.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 42290929 is about 6503.1476224979. The cubic root of 42290929 is about 348.4034191726.

The spelling of 42290929 in words is "forty-two million, two hundred ninety thousand, nine hundred twenty-nine".