42861258 has 64 divisors (see below), whose sum is σ = 105753600. Its totient is φ = 12757680.

The previous prime is 42861257. The next prime is 42861263. The reversal of 42861258 is 85216824.

42861258 is nontrivially palindromic in base 4.

It is not an unprimeable number, because it can be changed into a prime (42861257) 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, 34435 + ... + 35657.

It is an arithmetic number, because the mean of its divisors is an integer number (1652400).

Almost surely, 2^42861258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42861258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52876800).

42861258 is an abundant number, since it is smaller than the sum of its proper divisors (62892342).

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

42861258 is a wasteful number, since it uses less digits than its factorization.

42861258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1298 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 42861258 is about 6546.8509987627. The cubic root of 42861258 is about 349.9626028070.

The spelling of 42861258 in words is "forty-two million, eight hundred sixty-one thousand, two hundred fifty-eight".