129822042 has 16 divisors (see below), whose sum is σ = 296736192. Its totient is φ = 37092000.

The previous prime is 129822023. The next prime is 129822053. The reversal of 129822042 is 240228921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545459 + ... + 1545542.

It is an arithmetic number, because the mean of its divisors is an integer number (18546012).

Almost surely, 2^129822042 is an apocalyptic number.

129822042 is an abundant number, since it is smaller than the sum of its proper divisors (166914150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129822042 is a wasteful number, since it uses less digits than its factorization.

129822042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091013.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 129822042 is about 11393.9476038816. The cubic root of 129822042 is about 506.3484427369.

The spelling of 129822042 in words is "one hundred twenty-nine million, eight hundred twenty-two thousand, forty-two".