20754680 has 16 divisors (see below), whose sum is σ = 46698120. Its totient is φ = 8301856.

The previous prime is 20754673. The next prime is 20754689. The reversal of 20754680 is 8645702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20754689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259394 + ... + 259473.

Almost surely, 2^20754680 is an apocalyptic number.

20754680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20754680 is an abundant number, since it is smaller than the sum of its proper divisors (25943440).

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

20754680 is a wasteful number, since it uses less digits than its factorization.

20754680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518878 (or 518874 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 20754680 is about 4555.7304573471. The cubic root of 20754680 is about 274.8138906057.

The spelling of 20754680 in words is "twenty million, seven hundred fifty-four thousand, six hundred eighty".