7226591040 has 224 divisors, whose sum is σ = 26317163520. Its totient is φ = 1864857600.

The previous prime is 7226591017. The next prime is 7226591041. The reversal of 7226591040 is 401956227.

7226591040 is a `hidden beast` number, since 7 + 2 + 26 + 591 + 0 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 7226590986 and 7226591004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226591041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254350 + ... + 281330.

Almost surely, 2^7226591040 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 7226591040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13158581760).

7226591040 is an abundant number, since it is smaller than the sum of its proper divisors (19090572480).

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

7226591040 is a wasteful number, since it uses less digits than its factorization.

7226591040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27038 (or 27022 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 7226591040 is about 85009.3585436333. The cubic root of 7226591040 is about 1933.3530123509.

The spelling of 7226591040 in words is "seven billion, two hundred twenty-six million, five hundred ninety-one thousand, forty".