20754628 has 12 divisors (see below), whose sum is σ = 36352512. Its totient is φ = 10368200.

The previous prime is 20754623. The next prime is 20754653. The reversal of 20754628 is 82645702.

It is a junction number, because it is equal to n+sod(n) for n = 20754593 and 20754602.

It is not an unprimeable number, because it can be changed into a prime (20754623) 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 3 ways as a sum of consecutive naturals, for example, 7653 + ... + 10003.

It is an arithmetic number, because the mean of its divisors is an integer number (3029376).

Almost surely, 2^20754628 is an apocalyptic number.

It is an amenable number.

20754628 is a deficient number, since it is larger than the sum of its proper divisors (15597884).

20754628 is a wasteful number, since it uses less digits than its factorization.

20754628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562 (or 4560 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 20754628 is about 4555.7247502456. The cubic root of 20754628 is about 274.8136610938.

The spelling of 20754628 in words is "twenty million, seven hundred fifty-four thousand, six hundred twenty-eight".