20754064 has 10 divisors (see below), whose sum is σ = 40211030. Its totient is φ = 10377024.

The previous prime is 20754047. The next prime is 20754089. The reversal of 20754064 is 46045702.

It can be written as a sum of positive squares in only one way, i.e., 12390400 + 8363664 = 3520^2 + 2892^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648549 + ... + 648580.

It is an arithmetic number, because the mean of its divisors is an integer number (4021103).

Almost surely, 2^20754064 is an apocalyptic number.

It is an amenable number.

20754064 is a deficient number, since it is larger than the sum of its proper divisors (19456966).

20754064 is a wasteful number, since it uses less digits than its factorization.

20754064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297137 (or 1297131 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20754064 is about 4555.6628496850. The cubic root of 20754064 is about 274.8111717485.

Adding to 20754064 its reverse (46045702), we get a palindrome (66799766).

The spelling of 20754064 in words is "twenty million, seven hundred fifty-four thousand, sixty-four".