42290829 has 20 divisors (see below), whose sum is σ = 72201184. Its totient is φ = 24165864.

The previous prime is 42290797. The next prime is 42290837. The reversal of 42290829 is 92809224.

It is not a de Polignac number, because 42290829 - 2⁵ = 42290797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42290793 and 42290802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42290329) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36727 + ... + 37860.

Almost surely, 2^42290829 is an apocalyptic number.

It is an amenable number.

42290829 is a deficient number, since it is larger than the sum of its proper divisors (29910355).

42290829 is an equidigital number, since it uses as much as digits as its factorization.

42290829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74606 (or 74597 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 42290829 is about 6503.1399339088. The cubic root of 42290829 is about 348.4031445639.

The spelling of 42290829 in words is "forty-two million, two hundred ninety thousand, eight hundred twenty-nine".