42320052 has 36 divisors (see below), whose sum is σ = 107248960. Its totient is φ = 14070672.

The previous prime is 42320029. The next prime is 42320093. The reversal of 42320052 is 25002324.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15399 + ... + 17937.

Almost surely, 2^42320052 is an apocalyptic number.

It is an amenable number.

42320052 is an abundant number, since it is smaller than the sum of its proper divisors (64928908).

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

42320052 is a wasteful number, since it uses less digits than its factorization.

42320052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 42320052 is about 6505.3863836055. The cubic root of 42320052 is about 348.4833750467.

Adding to 42320052 its reverse (25002324), we get a palindrome (67322376).

The spelling of 42320052 in words is "forty-two million, three hundred twenty thousand, fifty-two".