220123040 has 24 divisors (see below), whose sum is σ = 520041060. Its totient is φ = 88049152.

The previous prime is 220123031. The next prime is 220123049. The reversal of 220123040 is 40321022.

It is an interprime number because it is at equal distance from previous prime (220123031) and next prime (220123049).

It can be written as a sum of positive squares in 2 ways, for example, as 208860304 + 11262736 = 14452^2 + 3356^2 .

It is not an unprimeable number, because it can be changed into a prime (220123049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687725 + ... + 688044.

Almost surely, 2^220123040 is an apocalyptic number.

220123040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220123040 is an abundant number, since it is smaller than the sum of its proper divisors (299918020).

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

220123040 is a wasteful number, since it uses less digits than its factorization.

220123040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375784 (or 1375776 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220123040 is about 14836.5440719866. The cubic root of 220123040 is about 603.7935934928.

Adding to 220123040 its reverse (40321022), we get a palindrome (260444062).

It can be divided in two parts, 22012 and 3040, that added together give a palindrome (25052).

The spelling of 220123040 in words is "two hundred twenty million, one hundred twenty-three thousand, forty".