42421735 has 4 divisors (see below), whose sum is σ = 50906088. Its totient is φ = 33937384.

The previous prime is 42421723. The next prime is 42421739. The reversal of 42421735 is 53712424.

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 42421735 - 2⁵ = 42421703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4242169 + ... + 4242178.

It is an arithmetic number, because the mean of its divisors is an integer number (12726522).

Almost surely, 2^42421735 is an apocalyptic number.

42421735 is a deficient number, since it is larger than the sum of its proper divisors (8484353).

42421735 is an equidigital number, since it uses as much as digits as its factorization.

42421735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484352.

The product of its digits is 6720, while the sum is 28.

The square root of 42421735 is about 6513.1969876551. The cubic root of 42421735 is about 348.7622538228.

The spelling of 42421735 in words is "forty-two million, four hundred twenty-one thousand, seven hundred thirty-five".