42321356 has 48 divisors (see below), whose sum is σ = 92843520. Its totient is φ = 16398720.

The previous prime is 42321337. The next prime is 42321371. The reversal of 42321356 is 65312324.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96185 + ... + 96623.

It is an arithmetic number, because the mean of its divisors is an integer number (1934240).

Almost surely, 2^42321356 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 42321356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46421760).

42321356 is an abundant number, since it is smaller than the sum of its proper divisors (50522164).

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

42321356 is a wasteful number, since it uses less digits than its factorization.

42321356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 772 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 42321356 is about 6505.4866074722. The cubic root of 42321356 is about 348.4869542614.

The spelling of 42321356 in words is "forty-two million, three hundred twenty-one thousand, three hundred fifty-six".