20777030 has 8 divisors (see below), whose sum is σ = 37398672. Its totient is φ = 8310808.

The previous prime is 20777023. The next prime is 20777039. The reversal of 20777030 is 3077702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20777039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038842 + ... + 1038861.

It is an arithmetic number, because the mean of its divisors is an integer number (4674834).

Almost surely, 2^20777030 is an apocalyptic number.

20777030 is a deficient number, since it is larger than the sum of its proper divisors (16621642).

20777030 is a wasteful number, since it uses less digits than its factorization.

20777030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077710.

The product of its (nonzero) digits is 2058, while the sum is 26.

The square root of 20777030 is about 4558.1827519309. The cubic root of 20777030 is about 274.9125010884.

The spelling of 20777030 in words is "twenty million, seven hundred seventy-seven thousand, thirty".