42253889 has 8 divisors (see below), whose sum is σ = 43921920. Its totient is φ = 40613616.

The previous prime is 42253873. The next prime is 42253909. The reversal of 42253889 is 98835224.

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

It is a cyclic number.

It is not a de Polignac number, because 42253889 - 2⁴ = 42253873 is a prime.

It is a super-2 number, since 2×42253889² = 3570782271248642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42253859) 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 7 ways as a sum of consecutive naturals, for example, 3809 + ... + 9950.

It is an arithmetic number, because the mean of its divisors is an integer number (5490240).

Almost surely, 2^42253889 is an apocalyptic number.

It is an amenable number.

42253889 is a deficient number, since it is larger than the sum of its proper divisors (1668031).

42253889 is a wasteful number, since it uses less digits than its factorization.

42253889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13879.

The product of its digits is 138240, while the sum is 41.

The square root of 42253889 is about 6500.2991469624. The cubic root of 42253889 is about 348.3016744856.

The spelling of 42253889 in words is "forty-two million, two hundred fifty-three thousand, eight hundred eighty-nine".