20036494 has 4 divisors (see below), whose sum is σ = 30054744. Its totient is φ = 10018246.

The previous prime is 20036483. The next prime is 20036521. The reversal of 20036494 is 49463002.

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

It is a super-2 number, since 2×20036494² = 802922183624072, which contains 22 as substring.

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, 5009122 + ... + 5009125.

It is an arithmetic number, because the mean of its divisors is an integer number (7513686).

Almost surely, 2^20036494 is an apocalyptic number.

20036494 is a deficient number, since it is larger than the sum of its proper divisors (10018250).

20036494 is a wasteful number, since it uses less digits than its factorization.

20036494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018249.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 20036494 is about 4476.2142486704. The cubic root of 20036494 is about 271.6067612694.

Adding to 20036494 its reverse (49463002), we get a palindrome (69499496).

The spelling of 20036494 in words is "twenty million, thirty-six thousand, four hundred ninety-four".