220489542 has 48 divisors (see below), whose sum is σ = 587976480. Its totient is φ = 58150656.

The previous prime is 220489537. The next prime is 220489559. The reversal of 220489542 is 245984022.

It is a junction number, because it is equal to n+sod(n) for n = 220489497 and 220489506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65667 + ... + 68942.

It is an arithmetic number, because the mean of its divisors is an integer number (12249510).

Almost surely, 2^220489542 is an apocalyptic number.

220489542 is an abundant number, since it is smaller than the sum of its proper divisors (367486938).

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

220489542 is a wasteful number, since it uses less digits than its factorization.

220489542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134637 (or 134634 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 220489542 is about 14848.8902615650. The cubic root of 220489542 is about 604.1285105120.

The spelling of 220489542 in words is "two hundred twenty million, four hundred eighty-nine thousand, five hundred forty-two".