20237342 has 4 divisors (see below), whose sum is σ = 30356016. Its totient is φ = 10118670.

The previous prime is 20237341. The next prime is 20237353. The reversal of 20237342 is 24373202.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20237342² = 819100022449928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20237341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5059334 + ... + 5059337.

It is an arithmetic number, because the mean of its divisors is an integer number (7589004).

Almost surely, 2^20237342 is an apocalyptic number.

20237342 is a deficient number, since it is larger than the sum of its proper divisors (10118674).

20237342 is a wasteful number, since it uses less digits than its factorization.

20237342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10118673.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20237342 is about 4498.5933356995. The cubic root of 20237342 is about 272.5112842169.

The spelling of 20237342 in words is "twenty million, two hundred thirty-seven thousand, three hundred forty-two".