220777542 has 32 divisors (see below), whose sum is σ = 499880160. Its totient is φ = 72203040.

The previous prime is 220777537. The next prime is 220777597. The reversal of 220777542 is 245777022.

220777542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220777497 and 220777506.

It is a congruent number.

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, 35709 + ... + 41432.

It is an arithmetic number, because the mean of its divisors is an integer number (15621255).

Almost surely, 2^220777542 is an apocalyptic number.

220777542 is an abundant number, since it is smaller than the sum of its proper divisors (279102618).

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

220777542 is a wasteful number, since it uses less digits than its factorization.

220777542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77205 (or 77199 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 220777542 is about 14858.5847912915. The cubic root of 220777542 is about 604.3914304831.

The spelling of 220777542 in words is "two hundred twenty million, seven hundred seventy-seven thousand, five hundred forty-two".