20066734 has 16 divisors (see below), whose sum is σ = 31199616. Its totient is φ = 9669600.

The previous prime is 20066731. The next prime is 20066771. The reversal of 20066734 is 43766002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19144 + ... + 20164.

It is an arithmetic number, because the mean of its divisors is an integer number (1949976).

Almost surely, 2^20066734 is an apocalyptic number.

20066734 is a deficient number, since it is larger than the sum of its proper divisors (11132882).

20066734 is a wasteful number, since it uses less digits than its factorization.

20066734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 20066734 is about 4479.5908295290. The cubic root of 20066734 is about 271.7433330654.

The spelling of 20066734 in words is "twenty million, sixty-six thousand, seven hundred thirty-four".