220145024 has 32 divisors (see below), whose sum is σ = 478443240. Its totient is φ = 100065280.

The previous prime is 220145017. The next prime is 220145033. The reversal of 220145024 is 420541022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 220144987 and 220145005.

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, 76769 + ... + 79584.

Almost surely, 2^220145024 is an apocalyptic number.

It is an amenable number.

220145024 is an abundant number, since it is smaller than the sum of its proper divisors (258298216).

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

220145024 is a wasteful number, since it uses less digits than its factorization.

220145024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156378 (or 156366 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 220145024 is about 14837.2849268321. The cubic root of 220145024 is about 603.8136933977.

Adding to 220145024 its reverse (420541022), we get a palindrome (640686046).

The spelling of 220145024 in words is "two hundred twenty million, one hundred forty-five thousand, twenty-four".