220120040 has 64 divisors (see below), whose sum is σ = 567302400. Its totient is φ = 75299328.

The previous prime is 220120027. The next prime is 220120049. The reversal of 220120040 is 40021022.

It is not an unprimeable number, because it can be changed into a prime (220120049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234452 + ... + 235388.

It is an arithmetic number, because the mean of its divisors is an integer number (8864100).

Almost surely, 2^220120040 is an apocalyptic number.

220120040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120040 is an abundant number, since it is smaller than the sum of its proper divisors (347182360).

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

220120040 is a wasteful number, since it uses less digits than its factorization.

220120040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220120040 is about 14836.4429699305. The cubic root of 220120040 is about 603.7908504981.

Adding to 220120040 its reverse (40021022), we get a palindrome (260141062).

The spelling of 220120040 in words is "two hundred twenty million, one hundred twenty thousand, forty".