20629064 has 16 divisors (see below), whose sum is σ = 38744700. Its totient is φ = 10297152.

The previous prime is 20629019. The next prime is 20629067. The reversal of 20629064 is 46092602.

It can be written as a sum of positive squares in 2 ways, for example, as 15602500 + 5026564 = 3950^2 + 2242^2 .

It is not an unprimeable number, because it can be changed into a prime (20629067) 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, 3854 + ... + 7490.

Almost surely, 2^20629064 is an apocalyptic number.

It is an amenable number.

20629064 is a deficient number, since it is larger than the sum of its proper divisors (18115636).

20629064 is a wasteful number, since it uses less digits than its factorization.

20629064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352 (or 4348 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20629064 is about 4541.9229407818. The cubic root of 20629064 is about 274.2583387650.

The spelling of 20629064 in words is "twenty million, six hundred twenty-nine thousand, sixty-four".