20440076 has 6 divisors (see below), whose sum is σ = 35770140. Its totient is φ = 10220036.

The previous prime is 20440039. The next prime is 20440109. The reversal of 20440076 is 67004402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555006 + ... + 2555013.

It is an arithmetic number, because the mean of its divisors is an integer number (5961690).

Almost surely, 2^20440076 is an apocalyptic number.

It is an amenable number.

20440076 is a deficient number, since it is larger than the sum of its proper divisors (15330064).

20440076 is a wasteful number, since it uses less digits than its factorization.

20440076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110023 (or 5110021 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20440076 is about 4521.0702272803. The cubic root of 20440076 is about 273.4182517564.

Adding to 20440076 its reverse (67004402), we get a palindrome (87444478).

The spelling of 20440076 in words is "twenty million, four hundred forty thousand, seventy-six".