220442524 has 12 divisors (see below), whose sum is σ = 386316000. Its totient is φ = 110066528.

The previous prime is 220442501. The next prime is 220442561. The reversal of 220442524 is 425244022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35449 + ... + 41200.

It is an arithmetic number, because the mean of its divisors is an integer number (32193000).

Almost surely, 2^220442524 is an apocalyptic number.

It is an amenable number.

220442524 is a deficient number, since it is larger than the sum of its proper divisors (165873476).

220442524 is a wasteful number, since it uses less digits than its factorization.

220442524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77372 (or 77370 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 220442524 is about 14847.3069611967. The cubic root of 220442524 is about 604.0855652648.

Adding to 220442524 its reverse (425244022), we get a palindrome (645686546).

The spelling of 220442524 in words is "two hundred twenty million, four hundred forty-two thousand, five hundred twenty-four".