20373838 has 4 divisors (see below), whose sum is σ = 30560760. Its totient is φ = 10186918.

The previous prime is 20373827. The next prime is 20373841. The reversal of 20373838 is 83837302.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5093458 + ... + 5093461.

It is an arithmetic number, because the mean of its divisors is an integer number (7640190).

Almost surely, 2^20373838 is an apocalyptic number.

20373838 is a deficient number, since it is larger than the sum of its proper divisors (10186922).

20373838 is a wasteful number, since it uses less digits than its factorization.

20373838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186921.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 20373838 is about 4513.7388050263. The cubic root of 20373838 is about 273.1225862449.

The spelling of 20373838 in words is "twenty million, three hundred seventy-three thousand, eight hundred thirty-eight".