42851384 has 32 divisors (see below), whose sum is σ = 85180800. Its totient is φ = 20152800.

The previous prime is 42851381. The next prime is 42851387. The reversal of 42851384 is 48315824.

42851384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42851381) and next prime (42851387).

It is a super-2 number, since 2×42851384² = 3672482221430912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42851381) 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 7 ways as a sum of consecutive naturals, for example, 22019 + ... + 23885.

It is an arithmetic number, because the mean of its divisors is an integer number (2661900).

Almost surely, 2^42851384 is an apocalyptic number.

It is an amenable number.

42851384 is a deficient number, since it is larger than the sum of its proper divisors (42329416).

42851384 is a wasteful number, since it uses less digits than its factorization.

42851384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043 (or 2039 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 42851384 is about 6546.0968523235. The cubic root of 42851384 is about 349.9357269733.

The spelling of 42851384 in words is "forty-two million, eight hundred fifty-one thousand, three hundred eighty-four".