42516378 has 48 divisors (see below), whose sum is σ = 96595200. Its totient is φ = 13497120.

The previous prime is 42516373. The next prime is 42516389. The reversal of 42516378 is 87361524.

42516378 is a `hidden beast` number, since 425 + 163 + 78 = 666.

It is not an unprimeable number, because it can be changed into a prime (42516373) 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, 40723 + ... + 41753.

It is an arithmetic number, because the mean of its divisors is an integer number (2012400).

Almost surely, 2^42516378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42516378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48297600).

42516378 is an abundant number, since it is smaller than the sum of its proper divisors (54078822).

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

42516378 is a wasteful number, since it uses less digits than its factorization.

42516378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1144 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42516378 is about 6520.4584194671. The cubic root of 42516378 is about 349.0214243436.

The spelling of 42516378 in words is "forty-two million, five hundred sixteen thousand, three hundred seventy-eight".