220140400 has 30 divisors (see below), whose sum is σ = 528888272. Its totient is φ = 88056000.

The previous prime is 220140379. The next prime is 220140407. The reversal of 220140400 is 4041022.

220140400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220140407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274776 + ... + 275575.

Almost surely, 2^220140400 is an apocalyptic number.

220140400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220140400 is an abundant number, since it is smaller than the sum of its proper divisors (308747872).

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

220140400 is a wasteful number, since it uses less digits than its factorization.

220140400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550369 (or 550358 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 220140400 is about 14837.1291023567. The cubic root of 220140400 is about 603.8094657995.

Adding to 220140400 its reverse (4041022), we get a palindrome (224181422).

The spelling of 220140400 in words is "two hundred twenty million, one hundred forty thousand, four hundred".