42891950 has 12 divisors (see below), whose sum is σ = 79779120. Its totient is φ = 17156760.

The previous prime is 42891943. The next prime is 42892001. The reversal of 42891950 is 5919824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428870 + ... + 428969.

It is an arithmetic number, because the mean of its divisors is an integer number (6648260).

Almost surely, 2^42891950 is an apocalyptic number.

42891950 is a deficient number, since it is larger than the sum of its proper divisors (36887170).

42891950 is a wasteful number, since it uses less digits than its factorization.

42891950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857851 (or 857846 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 42891950 is about 6549.1946069727. The cubic root of 42891950 is about 350.0461163724.

The spelling of 42891950 in words is "forty-two million, eight hundred ninety-one thousand, nine hundred fifty".