42934384 has 40 divisors (see below), whose sum is σ = 91132560. Its totient is φ = 19504128.

The previous prime is 42934379. The next prime is 42934387. The reversal of 42934384 is 48343924.

It is a super-2 number, since 2×42934384² = 3686722658918912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42934387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5167 + ... + 10609.

It is an arithmetic number, because the mean of its divisors is an integer number (2278314).

Almost surely, 2^42934384 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 42934384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45566280).

42934384 is an abundant number, since it is smaller than the sum of its proper divisors (48198176).

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

42934384 is a wasteful number, since it uses less digits than its factorization.

42934384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497 (or 5491 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 42934384 is about 6552.4334410965. The cubic root of 42934384 is about 350.1615145700.

The spelling of 42934384 in words is "forty-two million, nine hundred thirty-four thousand, three hundred eighty-four".