42272232 has 32 divisors (see below), whose sum is σ = 106958880. Its totient is φ = 13920320.

The previous prime is 42272231. The next prime is 42272233. The reversal of 42272232 is 23227224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42272231) and next prime (42272233).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (42272231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8619 + ... + 12602.

It is an arithmetic number, because the mean of its divisors is an integer number (3342465).

Almost surely, 2^42272232 is an apocalyptic number.

It is an amenable number.

42272232 is an abundant number, since it is smaller than the sum of its proper divisors (64686648).

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

42272232 is a wasteful number, since it uses less digits than its factorization.

42272232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21313 (or 21309 counting only the distinct ones).

The product of its digits is 2688, while the sum is 24.

The square root of 42272232 is about 6501.7099289341. The cubic root of 42272232 is about 348.3520680587.

Adding to 42272232 its reverse (23227224), we get a palindrome (65499456).

The spelling of 42272232 in words is "forty-two million, two hundred seventy-two thousand, two hundred thirty-two".