42333640 has 16 divisors (see below), whose sum is σ = 95250780. Its totient is φ = 16933440.

The previous prime is 42333623. The next prime is 42333713. The reversal of 42333640 is 4633324.

42333640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42172036 + 161604 = 6494^2 + 402^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529131 + ... + 529210.

Almost surely, 2^42333640 is an apocalyptic number.

42333640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42333640 is an abundant number, since it is smaller than the sum of its proper divisors (52917140).

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

42333640 is a wasteful number, since it uses less digits than its factorization.

42333640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058352 (or 1058348 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 42333640 is about 6506.4306651189. The cubic root of 42333640 is about 348.5206677340.

Adding to 42333640 its reverse (4633324), we get a palindrome (46966964).

The spelling of 42333640 in words is "forty-two million, three hundred thirty-three thousand, six hundred forty".