7940281194 has 24 divisors (see below), whose sum is σ = 17234851140. Its totient is φ = 2642005248.

The previous prime is 7940281189. The next prime is 7940281201. The reversal of 7940281194 is 4911820497.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6754374225 + 1185906969 = 82185^2 + 34437^2 .

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 385959 + ... + 406010.

Almost surely, 2^7940281194 is an apocalyptic number.

7940281194 is an abundant number, since it is smaller than the sum of its proper divisors (9294569946).

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

7940281194 is a wasteful number, since it uses less digits than its factorization.

7940281194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792534 (or 792531 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 7940281194 is about 89108.2554761342. The cubic root of 7940281194 is about 1995.0109981115.

The spelling of 7940281194 in words is "seven billion, nine hundred forty million, two hundred eighty-one thousand, one hundred ninety-four".