3942943400 has 48 divisors (see below), whose sum is σ = 10000743840. Its totient is φ = 1433796800.

The previous prime is 3942943393. The next prime is 3942943409. The reversal of 3942943400 is 43492493.

It is not an unprimeable number, because it can be changed into a prime (3942943409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 893924 + ... + 898323.

It is an arithmetic number, because the mean of its divisors is an integer number (208348830).

Almost surely, 2^3942943400 is an apocalyptic number.

It is an amenable number.

3942943400 is an abundant number, since it is smaller than the sum of its proper divisors (6057800440).

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

3942943400 is a wasteful number, since it uses less digits than its factorization.

3942943400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792274 (or 1792265 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 3942943400 is about 62792.8610592000. The cubic root of 3942943400 is about 1579.8172357097.

The spelling of 3942943400 in words is "three billion, nine hundred forty-two million, nine hundred forty-three thousand, four hundred".