1945718746 has 8 divisors (see below), whose sum is σ = 2928965364. Its totient is φ = 969396960.

The previous prime is 1945718743. The next prime is 1945718759. The reversal of 1945718746 is 6478175491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1728480625 + 217238121 = 41575^2 + 14739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1945718693 and 1945718702.

It is not an unprimeable number, because it can be changed into a prime (1945718743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730505 + ... + 1731628.

Almost surely, 2^1945718746 is an apocalyptic number.

1945718746 is a deficient number, since it is larger than the sum of its proper divisors (983246618).

1945718746 is a wasteful number, since it uses less digits than its factorization.

1945718746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462416.

The product of its digits is 1693440, while the sum is 52.

The square root of 1945718746 is about 44110.3020393196. The cubic root of 1945718746 is about 1248.4179978066.

The spelling of 1945718746 in words is "one billion, nine hundred forty-five million, seven hundred eighteen thousand, seven hundred forty-six".