42894384 has 80 divisors (see below), whose sum is σ = 121679712. Its totient is φ = 12939264.

The previous prime is 42894373. The next prime is 42894389. The reversal of 42894384 is 48349824.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42894389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32424 + ... + 33720.

Almost surely, 2^42894384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42894384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60839856).

42894384 is an abundant number, since it is smaller than the sum of its proper divisors (78785328).

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

42894384 is a wasteful number, since it uses less digits than its factorization.

42894384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1368 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 42894384 is about 6549.3804287123. The cubic root of 42894384 is about 350.0527376314.

The spelling of 42894384 in words is "forty-two million, eight hundred ninety-four thousand, three hundred eighty-four".