42459816 has 32 divisors (see below), whose sum is σ = 121314240. Its totient is φ = 12131328.

The previous prime is 42459811. The next prime is 42459827. The reversal of 42459816 is 61895424.

It is not an unprimeable number, because it can be changed into a prime (42459811) 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, 126201 + ... + 126536.

It is an arithmetic number, because the mean of its divisors is an integer number (3791070).

Almost surely, 2^42459816 is an apocalyptic number.

It is an amenable number.

42459816 is an abundant number, since it is smaller than the sum of its proper divisors (78854424).

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

42459816 is a wasteful number, since it uses less digits than its factorization.

42459816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252753 (or 252749 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 42459816 is about 6516.1197042412. The cubic root of 42459816 is about 348.8665811862.

The spelling of 42459816 in words is "forty-two million, four hundred fifty-nine thousand, eight hundred sixteen".