7273670400 has 378 divisors, whose sum is σ = 27010172280. Its totient is φ = 1938401280.

The previous prime is 7273670387. The next prime is 7273670401. The reversal of 7273670400 is 40763727.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7273670401) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 4664821 + ... + 4666379.

Almost surely, 2^7273670400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7273670400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13505086140).

7273670400 is an abundant number, since it is smaller than the sum of its proper divisors (19736501880).

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

7273670400 is an equidigital number, since it uses as much as digits as its factorization.

7273670400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 7273670400 is about 85285.8159367664. The cubic root of 7273670400 is about 1937.5423585606.

The spelling of 7273670400 in words is "seven billion, two hundred seventy-three million, six hundred seventy thousand, four hundred".