42573450 has 48 divisors (see below), whose sum is σ = 109234080. Its totient is φ = 10960320.

The previous prime is 42573431. The next prime is 42573523. The reversal of 42573450 is 5437524.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544 + ... + 9243.

It is an arithmetic number, because the mean of its divisors is an integer number (2275710).

Almost surely, 2^42573450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42573450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54617040).

42573450 is an abundant number, since it is smaller than the sum of its proper divisors (66660630).

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

42573450 is a wasteful number, since it uses less digits than its factorization.

42573450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831 (or 9826 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42573450 is about 6524.8333312047. The cubic root of 42573450 is about 349.1775245366.

The spelling of 42573450 in words is "forty-two million, five hundred seventy-three thousand, four hundred fifty".