220430040 has 64 divisors (see below), whose sum is σ = 676684800. Its totient is φ = 57412992.

The previous prime is 220430033. The next prime is 220430051. The reversal of 220430040 is 40034022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 16200 + ... + 26519.

It is an arithmetic number, because the mean of its divisors is an integer number (10573200).

Almost surely, 2^220430040 is an apocalyptic number.

220430040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220430040 is an abundant number, since it is smaller than the sum of its proper divisors (456254760).

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

220430040 is a wasteful number, since it uses less digits than its factorization.

220430040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42776 (or 42772 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 220430040 is about 14846.8865423024. The cubic root of 220430040 is about 604.0741616173.

Adding to 220430040 its reverse (40034022), we get a palindrome (260464062).

The spelling of 220430040 in words is "two hundred twenty million, four hundred thirty thousand, forty".