7072448440 has 32 divisors (see below), whose sum is σ = 15924091680. Its totient is φ = 2827009152.

The previous prime is 7072448431. The next prime is 7072448441. The reversal of 7072448440 is 448442707.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 7072448393 and 7072448402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7072448441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2724 + ... + 118963.

It is an arithmetic number, because the mean of its divisors is an integer number (497627865).

Almost surely, 2^7072448440 is an apocalyptic number.

It is an amenable number.

7072448440 is an abundant number, since it is smaller than the sum of its proper divisors (8851643240).

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

7072448440 is a wasteful number, since it uses less digits than its factorization.

7072448440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123151 (or 123147 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 40.

The square root of 7072448440 is about 84097.8503886990. The cubic root of 7072448440 is about 1919.5080155815.

The spelling of 7072448440 in words is "seven billion, seventy-two million, four hundred forty-eight thousand, four hundred forty".