42541398 has 48 divisors (see below), whose sum is σ = 96834816. Its totient is φ = 13471920.

The previous prime is 42541397. The next prime is 42541417. The reversal of 42541398 is 89314524.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42541391) 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, 87111 + ... + 87597.

It is an arithmetic number, because the mean of its divisors is an integer number (2017392).

Almost surely, 2^42541398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42541398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48417408).

42541398 is an abundant number, since it is smaller than the sum of its proper divisors (54293418).

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

42541398 is a wasteful number, since it uses less digits than its factorization.

42541398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 726 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 42541398 is about 6522.3767140514. The cubic root of 42541398 is about 349.0898748564.

The spelling of 42541398 in words is "forty-two million, five hundred forty-one thousand, three hundred ninety-eight".