20028374 has 16 divisors (see below), whose sum is σ = 30737616. Its totient is φ = 9784800.

The previous prime is 20028347. The next prime is 20028389. The reversal of 20028374 is 47382002.

It is a super-2 number, since 2×20028374² = 802271530167752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 21629 + ... + 22535.

It is an arithmetic number, because the mean of its divisors is an integer number (1921101).

Almost surely, 2^20028374 is an apocalyptic number.

20028374 is a deficient number, since it is larger than the sum of its proper divisors (10709242).

20028374 is a wasteful number, since it uses less digits than its factorization.

20028374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 20028374 is about 4475.3071402977. The cubic root of 20028374 is about 271.5700658127.

It can be divided in two parts, 20028 and 374, that added together give a palindrome (20402).

The spelling of 20028374 in words is "twenty million, twenty-eight thousand, three hundred seventy-four".