7400818540 has 12 divisors (see below), whose sum is σ = 15541718976. Its totient is φ = 2960327408.

The previous prime is 7400818519. The next prime is 7400818541. The reversal of 7400818540 is 458180047.

It is a self number, because there is not a number n which added to its sum of digits gives 7400818540.

It is not an unprimeable number, because it can be changed into a prime (7400818541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185020444 + ... + 185020483.

It is an arithmetic number, because the mean of its divisors is an integer number (1295143248).

Almost surely, 2^7400818540 is an apocalyptic number.

It is an amenable number.

7400818540 is an abundant number, since it is smaller than the sum of its proper divisors (8140900436).

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

7400818540 is a wasteful number, since it uses less digits than its factorization.

7400818540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370040936 (or 370040934 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 7400818540 is about 86028.0102059788. The cubic root of 7400818540 is about 1948.7670083984.

Adding to 7400818540 its reverse (458180047), we get a palindrome (7858998587).

The spelling of 7400818540 in words is "seven billion, four hundred million, eight hundred eighteen thousand, five hundred forty".