42423948 has 72 divisors (see below), whose sum is σ = 124167680. Its totient is φ = 11962080.

The previous prime is 42423947. The next prime is 42423967. The reversal of 42423948 is 84932424.

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 (42423943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18843 + ... + 20973.

Almost surely, 2^42423948 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 42423948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62083840).

42423948 is an abundant number, since it is smaller than the sum of its proper divisors (81743732).

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

42423948 is a wasteful number, since it uses less digits than its factorization.

42423948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2222 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 42423948 is about 6513.3668712886. The cubic root of 42423948 is about 348.7683183040.

The spelling of 42423948 in words is "forty-two million, four hundred twenty-three thousand, nine hundred forty-eight".