42109848 has 128 divisors (see below), whose sum is σ = 131328000. Its totient is φ = 12389760.

The previous prime is 42109843. The next prime is 42109853. The reversal of 42109848 is 84890124.

It is an interprime number because it is at equal distance from previous prime (42109843) and next prime (42109853).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42109843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87673 + ... + 88151.

It is an arithmetic number, because the mean of its divisors is an integer number (1026000).

Almost surely, 2^42109848 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 42109848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65664000).

42109848 is an abundant number, since it is smaller than the sum of its proper divisors (89218152).

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

42109848 is a wasteful number, since it uses less digits than its factorization.

42109848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 42109848 is about 6489.2101214246. The cubic root of 42109848 is about 347.9054439892.

The spelling of 42109848 in words is "forty-two million, one hundred nine thousand, eight hundred forty-eight".