940004222978 has 18 divisors (see below), whose sum is σ = 1426212261129. Its totient is φ = 464660858992.

The previous prime is 940004222953. The next prime is 940004222981. The reversal of 940004222978 is 879222400049.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 840260055649 + 99744167329 = 916657^2 + 315823^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=685567.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 122027075 + ... + 122034777.

Almost surely, 2^940004222978 is an apocalyptic number.

940004222978 is a deficient number, since it is larger than the sum of its proper divisors (486208038151).

940004222978 is an frugal number, since it uses more digits than its factorization.

940004222978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15586 (or 7794 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 940004222978 in words is "nine hundred forty billion, four million, two hundred twenty-two thousand, nine hundred seventy-eight".