42184780 has 24 divisors (see below), whose sum is σ = 96642000. Its totient is φ = 15339840.

The previous prime is 42184759. The next prime is 42184781. The reversal of 42184780 is 8748124.

It is not an unprimeable number, because it can be changed into a prime (42184781) 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, 95655 + ... + 96094.

It is an arithmetic number, because the mean of its divisors is an integer number (4026750).

Almost surely, 2^42184780 is an apocalyptic number.

It is an amenable number.

42184780 is an abundant number, since it is smaller than the sum of its proper divisors (54457220).

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

42184780 is a wasteful number, since it uses less digits than its factorization.

42184780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191769 (or 191767 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 42184780 is about 6494.9811393106. The cubic root of 42184780 is about 348.1116808066. Note that the first 3 decimals are identical.

It can be divided in two parts, 4218 and 4780, that added together give a palindrome (8998).

The spelling of 42184780 in words is "forty-two million, one hundred eighty-four thousand, seven hundred eighty".