42951988 has 24 divisors (see below), whose sum is σ = 78412544. Its totient is φ = 20563200.

The previous prime is 42951977. The next prime is 42952003. The reversal of 42951988 is 88915924.

42951988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10243 + ... + 13813.

Almost surely, 2^42951988 is an apocalyptic number.

It is an amenable number.

42951988 is a deficient number, since it is larger than the sum of its proper divisors (35460556).

42951988 is a wasteful number, since it uses less digits than its factorization.

42951988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703 (or 3701 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The square root of 42951988 is about 6553.7766211552. The cubic root of 42951988 is about 350.2093658913.

The spelling of 42951988 in words is "forty-two million, nine hundred fifty-one thousand, nine hundred eighty-eight".