220540412 has 12 divisors (see below), whose sum is σ = 388405080. Its totient is φ = 109567536.

The previous prime is 220540409. The next prime is 220540433. The reversal of 220540412 is 214045022.

It is a happy number.

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, 174962 + ... + 176217.

It is an arithmetic number, because the mean of its divisors is an integer number (32367090).

Almost surely, 2^220540412 is an apocalyptic number.

It is an amenable number.

220540412 is a deficient number, since it is larger than the sum of its proper divisors (167864668).

220540412 is a wasteful number, since it uses less digits than its factorization.

220540412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351340 (or 351338 counting only the distinct ones).

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

The square root of 220540412 is about 14850.6030853969. The cubic root of 220540412 is about 604.1749672190.

Adding to 220540412 its reverse (214045022), we get a palindrome (434585434).

The spelling of 220540412 in words is "two hundred twenty million, five hundred forty thousand, four hundred twelve".