42433240 has 32 divisors (see below), whose sum is σ = 96238080. Its totient is φ = 16837632.

The previous prime is 42433201. The next prime is 42433249. The reversal of 42433240 is 4233424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42433249) 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, 904 + ... + 9256.

It is an arithmetic number, because the mean of its divisors is an integer number (3007440).

Almost surely, 2^42433240 is an apocalyptic number.

42433240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42433240 is an abundant number, since it is smaller than the sum of its proper divisors (53804840).

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

42433240 is a wasteful number, since it uses less digits than its factorization.

42433240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491 (or 8487 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 42433240 is about 6514.0801346007. The cubic root of 42433240 is about 348.7937796986.

Adding to 42433240 its reverse (4233424), we get a palindrome (46666664).

The spelling of 42433240 in words is "forty-two million, four hundred thirty-three thousand, two hundred forty".