20769270 has 16 divisors (see below), whose sum is σ = 49846320. Its totient is φ = 5538464.

The previous prime is 20769251. The next prime is 20769271. The reversal of 20769270 is 7296702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20769271) 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, 346125 + ... + 346184.

It is an arithmetic number, because the mean of its divisors is an integer number (3115395).

Almost surely, 2^20769270 is an apocalyptic number.

20769270 is an abundant number, since it is smaller than the sum of its proper divisors (29077050).

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

20769270 is a wasteful number, since it uses less digits than its factorization.

20769270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692319.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 20769270 is about 4557.3314560168. The cubic root of 20769270 is about 274.8782711935.

The spelling of 20769270 in words is "twenty million, seven hundred sixty-nine thousand, two hundred seventy".