42225389 has 4 divisors (see below), whose sum is σ = 42347424. Its totient is φ = 42103356.

The previous prime is 42225383. The next prime is 42225413. The reversal of 42225389 is 98352224.

42225389 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42225389 - 2⁸ = 42225133 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 (42225383) 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 in 3 ways as a sum of consecutive naturals, for example, 60497 + ... + 61190.

It is an arithmetic number, because the mean of its divisors is an integer number (10586856).

Almost surely, 2^42225389 is an apocalyptic number.

It is an amenable number.

42225389 is a deficient number, since it is larger than the sum of its proper divisors (122035).

42225389 is a wasteful number, since it uses less digits than its factorization.

42225389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122034.

The product of its digits is 34560, while the sum is 35.

The square root of 42225389 is about 6498.1065703788. The cubic root of 42225389 is about 348.2233477280.

The spelling of 42225389 in words is "forty-two million, two hundred twenty-five thousand, three hundred eighty-nine".