3945294273 has 12 divisors (see below), whose sum is σ = 5551828368. Its totient is φ = 2491764120.

The previous prime is 3945294251. The next prime is 3945294319. The reversal of 3945294273 is 3724925493.

3945294273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3945294273 - 2⁹ = 3945293761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3945294373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1820383 + ... + 1822548.

It is an arithmetic number, because the mean of its divisors is an integer number (462652364).

Almost surely, 2^3945294273 is an apocalyptic number.

It is an amenable number.

3945294273 is a deficient number, since it is larger than the sum of its proper divisors (1606534095).

3945294273 is a wasteful number, since it uses less digits than its factorization.

3945294273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642972 (or 3642953 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The square root of 3945294273 is about 62811.5775394951. The cubic root of 3945294273 is about 1580.1311477155.

The spelling of 3945294273 in words is "three billion, nine hundred forty-five million, two hundred ninety-four thousand, two hundred seventy-three".