42242829 has 8 divisors (see below), whose sum is σ = 56387040. Its totient is φ = 28130256.

The previous prime is 42242803. The next prime is 42242831. The reversal of 42242829 is 92824224.

It is a happy number.

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

It is not a de Polignac number, because 42242829 - 2⁸ = 42242573 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42242829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242869) 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, 4594 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (7048380).

Almost surely, 2^42242829 is an apocalyptic number.

It is an amenable number.

42242829 is a deficient number, since it is larger than the sum of its proper divisors (14144211).

42242829 is a wasteful number, since it uses less digits than its factorization.

42242829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15819.

The product of its digits is 18432, while the sum is 33.

The square root of 42242829 is about 6499.4483612073. The cubic root of 42242829 is about 348.2712823902.

It can be divided in two parts, 42242 and 829, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 42242829 in words is "forty-two million, two hundred forty-two thousand, eight hundred twenty-nine".