42059988 has 72 divisors (see below), whose sum is σ = 109680480. Its totient is φ = 13584960.

The previous prime is 42059929. The next prime is 42059999. The reversal of 42059988 is 88995024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234883 + ... + 235061.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^42059988 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 42059988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54840240).

42059988 is an abundant number, since it is smaller than the sum of its proper divisors (67620492).

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

42059988 is a wasteful number, since it uses less digits than its factorization.

42059988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 42059988 is about 6485.3672216768. The cubic root of 42059988 is about 347.7680777345.

The spelling of 42059988 in words is "forty-two million, fifty-nine thousand, nine hundred eighty-eight".