20497076 has 24 divisors (see below), whose sum is σ = 37825536. Its totient is φ = 9704160.

The previous prime is 20497073. The next prime is 20497091. The reversal of 20497076 is 67079402.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20497073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4070 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (1576064).

Almost surely, 2^20497076 is an apocalyptic number.

It is an amenable number.

20497076 is a deficient number, since it is larger than the sum of its proper divisors (17328460).

20497076 is a wasteful number, since it uses less digits than its factorization.

20497076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599 (or 3597 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20497076 is about 4527.3696557714. The cubic root of 20497076 is about 273.6721708370.

The spelling of 20497076 in words is "twenty million, four hundred ninety-seven thousand, seventy-six".