20540676 has 24 divisors (see below), whose sum is σ = 51615424. Its totient is φ = 6320160.

The previous prime is 20540651. The next prime is 20540699. The reversal of 20540676 is 67604502.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 65680 + ... + 65991.

Almost surely, 2^20540676 is an apocalyptic number.

20540676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20540676 is an abundant number, since it is smaller than the sum of its proper divisors (31074748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20540676 is a wasteful number, since it uses less digits than its factorization.

20540676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131691 (or 131689 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20540676 is about 4532.1822558233. The cubic root of 20540676 is about 273.8660790842.

The spelling of 20540676 in words is "twenty million, five hundred forty thousand, six hundred seventy-six".