3936640254 has 16 divisors (see below), whose sum is σ = 7878349440. Its totient is φ = 1311368600.

The previous prime is 3936640247. The next prime is 3936640313. The reversal of 3936640254 is 4520466393.

It is a Curzon number.

It is a congruent 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, 201072 + ... + 219779.

It is an arithmetic number, because the mean of its divisors is an integer number (492396840).

Almost surely, 2^3936640254 is an apocalyptic number.

3936640254 is an abundant number, since it is smaller than the sum of its proper divisors (3941709186).

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

3936640254 is a wasteful number, since it uses less digits than its factorization.

3936640254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422415.

The product of its (nonzero) digits is 466560, while the sum is 42.

The square root of 3936640254 is about 62742.6509959533. The cubic root of 3936640254 is about 1578.9749605741.

The spelling of 3936640254 in words is "three billion, nine hundred thirty-six million, six hundred forty thousand, two hundred fifty-four".