20765334 has 32 divisors (see below), whose sum is σ = 43338240. Its totient is φ = 6624800.

The previous prime is 20765333. The next prime is 20765341. The reversal of 20765334 is 43356702.

It is a super-2 number, since 2×20765334² = 862398192263112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20765333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22339 + ... + 23249.

It is an arithmetic number, because the mean of its divisors is an integer number (1354320).

Almost surely, 2^20765334 is an apocalyptic number.

20765334 is an abundant number, since it is smaller than the sum of its proper divisors (22572906).

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

20765334 is a wasteful number, since it uses less digits than its factorization.

20765334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 20765334 is about 4556.8996038974. The cubic root of 20765334 is about 274.8609059671.

The spelling of 20765334 in words is "twenty million, seven hundred sixty-five thousand, three hundred thirty-four".