7200104400 has 90 divisors (see below), whose sum is σ = 24986374790. Its totient is φ = 1920026880.

The previous prime is 7200104389. The next prime is 7200104419. The reversal of 7200104400 is 44010027.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18558864 + 7181545536 = 4308^2 + 84744^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 996415 + ... + 1003614.

Almost surely, 2^7200104400 is an apocalyptic number.

It is an amenable number.

7200104400 is an abundant number, since it is smaller than the sum of its proper divisors (17786270390).

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

7200104400 is a wasteful number, since it uses less digits than its factorization.

7200104400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000053 (or 2000039 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 7200104400 is about 84853.4289230553. The cubic root of 7200104400 is about 1930.9881022302.

Adding to 7200104400 its reverse (44010027), we get a palindrome (7244114427).

The spelling of 7200104400 in words is "seven billion, two hundred million, one hundred four thousand, four hundred".