42232420 has 24 divisors (see below), whose sum is σ = 93905784. Its totient is φ = 15899136.

The previous prime is 42232391. The next prime is 42232441. The reversal of 42232420 is 2423224.

It can be written as a sum of positive squares in 4 ways, for example, as 5943844 + 36288576 = 2438^2 + 6024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61767 + ... + 62446.

It is an arithmetic number, because the mean of its divisors is an integer number (3912741).

Almost surely, 2^42232420 is an apocalyptic number.

It is an amenable number.

42232420 is an abundant number, since it is smaller than the sum of its proper divisors (51673364).

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

42232420 is a wasteful number, since it uses less digits than its factorization.

42232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124239 (or 124237 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42232420 is about 6498.6475516064. The cubic root of 42232420 is about 348.2426743506.

Adding to 42232420 its reverse (2423224), we get a palindrome (44655644).

The spelling of 42232420 in words is "forty-two million, two hundred thirty-two thousand, four hundred twenty".