42450432 has 80 divisors (see below), whose sum is σ = 117113040. Its totient is φ = 13647872.

The previous prime is 42450391. The next prime is 42450451. The reversal of 42450432 is 23405424.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44068 + ... + 45020.

It is an arithmetic number, because the mean of its divisors is an integer number (1463913).

Almost surely, 2^42450432 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 42450432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58556520).

42450432 is an abundant number, since it is smaller than the sum of its proper divisors (74662608).

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

42450432 is an equidigital number, since it uses as much as digits as its factorization.

42450432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42450432 is about 6515.3996040151. The cubic root of 42450432 is about 348.8408784118.

Adding to 42450432 its reverse (23405424), we get a palindrome (65855856).

The spelling of 42450432 in words is "forty-two million, four hundred fifty thousand, four hundred thirty-two".