220769994 has 32 divisors (see below), whose sum is σ = 456753024. Its totient is φ = 71089920.

The previous prime is 220769993. The next prime is 220769999. The reversal of 220769994 is 499967022.

220769994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220769993) 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, 20982 + ... + 29694.

It is an arithmetic number, because the mean of its divisors is an integer number (14273532).

Almost surely, 2^220769994 is an apocalyptic number.

220769994 is an abundant number, since it is smaller than the sum of its proper divisors (235983030).

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

220769994 is a wasteful number, since it uses less digits than its factorization.

220769994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 220769994 is about 14858.3307945408. The cubic root of 220769994 is about 604.3845427075.

The spelling of 220769994 in words is "two hundred twenty million, seven hundred sixty-nine thousand, nine hundred ninety-four".