42858396 has 72 divisors (see below), whose sum is σ = 128419200. Its totient is φ = 12243312.

The previous prime is 42858391. The next prime is 42858419. The reversal of 42858396 is 69385824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42858391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3655 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (1783600).

Almost surely, 2^42858396 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 42858396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64209600).

42858396 is an abundant number, since it is smaller than the sum of its proper divisors (85560804).

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

42858396 is a wasteful number, since it uses less digits than its factorization.

42858396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325 (or 6311 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 42858396 is about 6546.6324167468. The cubic root of 42858396 is about 349.9548132140.

The spelling of 42858396 in words is "forty-two million, eight hundred fifty-eight thousand, three hundred ninety-six".