7445400140 has 24 divisors (see below), whose sum is σ = 15891659952. Its totient is φ = 2929337280.

The previous prime is 7445400139. The next prime is 7445400181. The reversal of 7445400140 is 410045447.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3050174 + ... + 3052613.

It is an arithmetic number, because the mean of its divisors is an integer number (662152498).

Almost surely, 2^7445400140 is an apocalyptic number.

It is an amenable number.

7445400140 is an abundant number, since it is smaller than the sum of its proper divisors (8446259812).

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

7445400140 is a wasteful number, since it uses less digits than its factorization.

7445400140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6102857 (or 6102855 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 7445400140 is about 86286.7321202976. The cubic root of 7445400140 is about 1952.6722198098.

Adding to 7445400140 its reverse (410045447), we get a palindrome (7855445587).

The spelling of 7445400140 in words is "seven billion, four hundred forty-five million, four hundred thousand, one hundred forty".