20766030 has 32 divisors (see below), whose sum is σ = 51559200. Its totient is φ = 5346432.

The previous prime is 20766023. The next prime is 20766041. The reversal of 20766030 is 3066702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11065 + ... + 12804.

It is an arithmetic number, because the mean of its divisors is an integer number (1611225).

Almost surely, 2^20766030 is an apocalyptic number.

20766030 is an abundant number, since it is smaller than the sum of its proper divisors (30793170).

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

20766030 is a wasteful number, since it uses less digits than its factorization.

20766030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23908.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 20766030 is about 4556.9759709702. The cubic root of 20766030 is about 274.8639768071.

It can be divided in two parts, 207660 and 30, that added together give a triangular number (207690 = T₆₄₄).

The spelling of 20766030 in words is "twenty million, seven hundred sixty-six thousand, thirty".