42243432 has 64 divisors (see below), whose sum is σ = 131673600. Its totient is φ = 10971840.

The previous prime is 42243413. The next prime is 42243497. The reversal of 42243432 is 23434224.

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

It is a nude number because it is divisible by every one of its digits.

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, 9582 + ... + 13277.

It is an arithmetic number, because the mean of its divisors is an integer number (2057400).

Almost surely, 2^42243432 is an apocalyptic number.

42243432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42243432 is an abundant number, since it is smaller than the sum of its proper divisors (89430168).

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

42243432 is a wasteful number, since it uses less digits than its factorization.

42243432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22886 (or 22882 counting only the distinct ones).

The product of its digits is 4608, while the sum is 24.

The square root of 42243432 is about 6499.4947495940. The cubic root of 42243432 is about 348.2729395282.

Adding to 42243432 its reverse (23434224), we get a palindrome (65677656).

The spelling of 42243432 in words is "forty-two million, two hundred forty-three thousand, four hundred thirty-two".