7400140820 has 24 divisors (see below), whose sum is σ = 16041596928. Its totient is φ = 2864570400.

The previous prime is 7400140793. The next prime is 7400140823. The reversal of 7400140820 is 280410047.

It is a self number, because there is not a number n which added to its sum of digits gives 7400140820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400140823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5967236 + ... + 5968475.

It is an arithmetic number, because the mean of its divisors is an integer number (668399872).

Almost surely, 2^7400140820 is an apocalyptic number.

It is an amenable number.

7400140820 is an abundant number, since it is smaller than the sum of its proper divisors (8641456108).

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

7400140820 is a wasteful number, since it uses less digits than its factorization.

7400140820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11935751 (or 11935749 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 7400140820 is about 86024.0711661567. The cubic root of 7400140820 is about 1948.7075213437.

Adding to 7400140820 its reverse (280410047), we get a palindrome (7680550867).

The spelling of 7400140820 in words is "seven billion, four hundred million, one hundred forty thousand, eight hundred twenty".