42253743 has 8 divisors (see below), whose sum is σ = 64386688. Its totient is φ = 24144984.

The previous prime is 42253727. The next prime is 42253753. The reversal of 42253743 is 34735224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42253743 - 2⁴ = 42253727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42253743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42253753) 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, 1006021 + ... + 1006062.

It is an arithmetic number, because the mean of its divisors is an integer number (8048336).

Almost surely, 2^42253743 is an apocalyptic number.

42253743 is a deficient number, since it is larger than the sum of its proper divisors (22132945).

42253743 is a wasteful number, since it uses less digits than its factorization.

42253743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012093.

The product of its digits is 20160, while the sum is 30.

The square root of 42253743 is about 6500.2879167003. The cubic root of 42253743 is about 348.3012733225.

Adding to 42253743 its reverse (34735224), we get a palindrome (76988967).

The spelling of 42253743 in words is "forty-two million, two hundred fifty-three thousand, seven hundred forty-three".