20029342 has 4 divisors (see below), whose sum is σ = 30044016. Its totient is φ = 10014670.

The previous prime is 20029337. The next prime is 20029381. The reversal of 20029342 is 24392002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24392002 = 2 ⋅12196001.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5007334 + ... + 5007337.

It is an arithmetic number, because the mean of its divisors is an integer number (7511004).

Almost surely, 2^20029342 is an apocalyptic number.

20029342 is a deficient number, since it is larger than the sum of its proper divisors (10014674).

20029342 is a wasteful number, since it uses less digits than its factorization.

20029342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014673.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20029342 is about 4475.4152879928. The cubic root of 20029342 is about 271.5744408656.

The spelling of 20029342 in words is "twenty million, twenty-nine thousand, three hundred forty-two".