20077266 has 32 divisors (see below), whose sum is σ = 44229888. Its totient is φ = 6025040.

The previous prime is 20077247. The next prime is 20077271. The reversal of 20077266 is 66277002.

It is a super-2 number, since 2×20077266² = 806193220069512, which contains 22 as substring.

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, 5641 + ... + 8483.

It is an arithmetic number, because the mean of its divisors is an integer number (1382184).

Almost surely, 2^20077266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20077266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22114944).

20077266 is an abundant number, since it is smaller than the sum of its proper divisors (24152622).

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

20077266 is a wasteful number, since it uses less digits than its factorization.

20077266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 20077266 is about 4480.7662291175. The cubic root of 20077266 is about 271.7908661322.

The spelling of 20077266 in words is "twenty million, seventy-seven thousand, two hundred sixty-six".