42209454 has 16 divisors (see below), whose sum is σ = 96478848. Its totient is φ = 12059832.

The previous prime is 42209449. The next prime is 42209473. The reversal of 42209454 is 45490224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502452 + ... + 502535.

It is an arithmetic number, because the mean of its divisors is an integer number (6029928).

Almost surely, 2^42209454 is an apocalyptic number.

42209454 is an abundant number, since it is smaller than the sum of its proper divisors (54269394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42209454 is a wasteful number, since it uses less digits than its factorization.

42209454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004999.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42209454 is about 6496.8803282806. The cubic root of 42209454 is about 348.1795380885.

Adding to 42209454 its reverse (45490224), we get a palindrome (87699678).

The spelling of 42209454 in words is "forty-two million, two hundred nine thousand, four hundred fifty-four".