42494180 has 24 divisors (see below), whose sum is σ = 92117760. Its totient is φ = 16449120.

The previous prime is 42494141. The next prime is 42494189. The reversal of 42494180 is 8149424.

It is not an unprimeable number, because it can be changed into a prime (42494189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33650 + ... + 34889.

It is an arithmetic number, because the mean of its divisors is an integer number (3838240).

Almost surely, 2^42494180 is an apocalyptic number.

It is an amenable number.

42494180 is an abundant number, since it is smaller than the sum of its proper divisors (49623580).

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

42494180 is a wasteful number, since it uses less digits than its factorization.

42494180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68579 (or 68577 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 42494180 is about 6518.7560162964. The cubic root of 42494180 is about 348.9606718627.

The spelling of 42494180 in words is "forty-two million, four hundred ninety-four thousand, one hundred eighty".