2206520400 has 120 divisors (see below), whose sum is σ = 8077996864. Its totient is φ = 504345600.

The previous prime is 2206520363. The next prime is 2206520413. The reversal of 2206520400 is 40256022.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122941 + ... + 139740.

Almost surely, 2^2206520400 is an apocalyptic number.

2206520400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2206520400 is an abundant number, since it is smaller than the sum of its proper divisors (5871476464).

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

2206520400 is a wasteful number, since it uses less digits than its factorization.

2206520400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262709 (or 262698 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2206520400 is about 46973.6138699164. The cubic root of 2206520400 is about 1301.8750850544.

Adding to 2206520400 its reverse (40256022), we get a palindrome (2246776422).

The spelling of 2206520400 in words is "two billion, two hundred six million, five hundred twenty thousand, four hundred".