3943890154 has 8 divisors (see below), whose sum is σ = 6227195040. Its totient is φ = 1868158476.

The previous prime is 3943890133. The next prime is 3943890217. The reversal of 3943890154 is 4510983493.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 51893254 + ... + 51893329.

It is an arithmetic number, because the mean of its divisors is an integer number (778399380).

Almost surely, 2^3943890154 is an apocalyptic number.

3943890154 is a deficient number, since it is larger than the sum of its proper divisors (2283304886).

3943890154 is a wasteful number, since it uses less digits than its factorization.

3943890154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103786604.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 3943890154 is about 62800.3993140171. The cubic root of 3943890154 is about 1579.9436707472.

The spelling of 3943890154 in words is "three billion, nine hundred forty-three million, eight hundred ninety thousand, one hundred fifty-four".