42250413 has 4 divisors (see below), whose sum is σ = 56333888. Its totient is φ = 28166940.

The previous prime is 42250409. The next prime is 42250447. The reversal of 42250413 is 31405224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42250413 - 2² = 42250409 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 42250413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42250463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7041733 + ... + 7041738.

It is an arithmetic number, because the mean of its divisors is an integer number (14083472).

Almost surely, 2^42250413 is an apocalyptic number.

It is an amenable number.

42250413 is a deficient number, since it is larger than the sum of its proper divisors (14083475).

42250413 is a wasteful number, since it uses less digits than its factorization.

42250413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14083474.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42250413 is about 6500.0317691531. The cubic root of 42250413 is about 348.2921232557.

Adding to 42250413 its reverse (31405224), we get a palindrome (73655637).

The spelling of 42250413 in words is "forty-two million, two hundred fifty thousand, four hundred thirteen".