42490334 has 4 divisors (see below), whose sum is σ = 63735504. Its totient is φ = 21245166.

The previous prime is 42490333. The next prime is 42490337. The reversal of 42490334 is 43309424.

42490334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 42490297 and 42490306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42490333) by changing a digit.

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 as a sum of consecutive naturals, namely, 10622582 + ... + 10622585.

It is an arithmetic number, because the mean of its divisors is an integer number (15933876).

Almost surely, 2^42490334 is an apocalyptic number.

42490334 is a deficient number, since it is larger than the sum of its proper divisors (21245170).

42490334 is a wasteful number, since it uses less digits than its factorization.

42490334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21245169.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 42490334 is about 6518.4610146874. The cubic root of 42490334 is about 348.9501438074.

Adding to 42490334 its reverse (43309424), we get a palindrome (85799758).

It can be divided in two parts, 42490 and 334, that added together give a palindrome (42824).

The spelling of 42490334 in words is "forty-two million, four hundred ninety thousand, three hundred thirty-four".