42333530 has 16 divisors (see below), whose sum is σ = 76359240. Its totient is φ = 16898112.

The previous prime is 42333509. The next prime is 42333581. The reversal of 42333530 is 3533324.

It can be written as a sum of positive squares in 4 ways, for example, as 42289009 + 44521 = 6503^2 + 211^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42333496 and 42333505.

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, 932 + ... + 9248.

Almost surely, 2^42333530 is an apocalyptic number.

42333530 is a deficient number, since it is larger than the sum of its proper divisors (34025710).

42333530 is a wasteful number, since it uses less digits than its factorization.

42333530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833.

The product of its (nonzero) digits is 3240, while the sum is 23.

The square root of 42333530 is about 6506.4222119380. The cubic root of 42333530 is about 348.5203658677.

Adding to 42333530 its reverse (3533324), we get a palindrome (45866854).

The spelling of 42333530 in words is "forty-two million, three hundred thirty-three thousand, five hundred thirty".