7274993940 has 240 divisors, whose sum is σ = 25000390800. Its totient is φ = 1762725888.

The previous prime is 7274993897. The next prime is 7274993951. The reversal of 7274993940 is 493994727.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 126967824 + 7148026116 = 11268^2 + 84546^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 794106 + ... + 803214.

It is an arithmetic number, because the mean of its divisors is an integer number (104168295).

Almost surely, 2^7274993940 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 7274993940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12500195400).

7274993940 is an abundant number, since it is smaller than the sum of its proper divisors (17725396860).

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

7274993940 is a wasteful number, since it uses less digits than its factorization.

7274993940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176 (or 9165 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 7274993940 is about 85293.5750218034. The cubic root of 7274993940 is about 1937.6598718721.

The spelling of 7274993940 in words is "seven billion, two hundred seventy-four million, nine hundred ninety-three thousand, nine hundred forty".