20040022 has 16 divisors (see below), whose sum is σ = 31814640. Its totient is φ = 9440928.

The previous prime is 20039993. The next prime is 20040049. The reversal of 20040022 is 22004002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20039990 and 20040008.

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, 6148 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (1988415).

Almost surely, 2^20040022 is an apocalyptic number.

20040022 is a deficient number, since it is larger than the sum of its proper divisors (11774618).

20040022 is a wasteful number, since it uses less digits than its factorization.

20040022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 20040022 is about 4476.6083143380. The cubic root of 20040022 is about 271.6227017231.

Adding to 20040022 its reverse (22004002), we get a palindrome (42044024).

It can be divided in two parts, 2004002 and 2, that multiplied together give a palindrome (4008004).

The spelling of 20040022 in words is "twenty million, forty thousand, twenty-two".