42497448 has 64 divisors (see below), whose sum is σ = 122411520. Its totient is φ = 12043200.

The previous prime is 42497417. The next prime is 42497453. The reversal of 42497448 is 84479424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21043 + ... + 22973.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^42497448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42497448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61205760).

42497448 is an abundant number, since it is smaller than the sum of its proper divisors (79914072).

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

42497448 is a wasteful number, since it uses less digits than its factorization.

42497448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078 (or 2074 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 42497448 is about 6519.0066727992. The cubic root of 42497448 is about 348.9696171994.

The spelling of 42497448 in words is "forty-two million, four hundred ninety-seven thousand, four hundred forty-eight".