42440435 has 4 divisors (see below), whose sum is σ = 50928528. Its totient is φ = 33952344.

The previous prime is 42440423. The next prime is 42440537. The reversal of 42440435 is 53404424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42440435 - 2²⁰ = 41391859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4244039 + ... + 4244048.

It is an arithmetic number, because the mean of its divisors is an integer number (12732132).

Almost surely, 2^42440435 is an apocalyptic number.

42440435 is a deficient number, since it is larger than the sum of its proper divisors (8488093).

42440435 is an equidigital number, since it uses as much as digits as its factorization.

42440435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8488092.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 42440435 is about 6514.6323764277. The cubic root of 42440435 is about 348.8134924632.

Adding to 42440435 its reverse (53404424), we get a palindrome (95844859).

It can be divided in two parts, 42440 and 435, that added together give a cube (42875 = 35³).

The spelling of 42440435 in words is "forty-two million, four hundred forty thousand, four hundred thirty-five".