42032270 has 32 divisors (see below), whose sum is σ = 90229248. Its totient is φ = 13783968.

The previous prime is 42032231. The next prime is 42032273. The reversal of 42032270 is 7223024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42032273) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11444 + ... + 14663.

It is an arithmetic number, because the mean of its divisors is an integer number (2819664).

Almost surely, 2^42032270 is an apocalyptic number.

42032270 is an abundant number, since it is smaller than the sum of its proper divisors (48196978).

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

42032270 is a wasteful number, since it uses less digits than its factorization.

42032270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26144.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 42032270 is about 6483.2299049162. The cubic root of 42032270 is about 347.6916666027.

Adding to 42032270 its reverse (7223024), we get a palindrome (49255294).

The spelling of 42032270 in words is "forty-two million, thirty-two thousand, two hundred seventy".