42019648 has 56 divisors (see below), whose sum is σ = 96341184. Its totient is φ = 17971200.

The previous prime is 42019613. The next prime is 42019651. The reversal of 42019648 is 84691024.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10213 + ... + 13723.

Almost surely, 2^42019648 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 42019648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48170592).

42019648 is an abundant number, since it is smaller than the sum of its proper divisors (54321536).

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

42019648 is a wasteful number, since it uses less digits than its factorization.

42019648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 42019648 is about 6482.2563972740. The cubic root of 42019648 is about 347.6568599841.

The spelling of 42019648 in words is "forty-two million, nineteen thousand, six hundred forty-eight".