42080384 has 16 divisors (see below), whose sum is σ = 83832270. Its totient is φ = 21040128.

The previous prime is 42080371. The next prime is 42080387. The reversal of 42080384 is 48308024.

It can be written as a sum of positive squares in only one way, i.e., 41886784 + 193600 = 6472^2 + 440^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42080387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164249 + ... + 164504.

Almost surely, 2^42080384 is an apocalyptic number.

It is an amenable number.

42080384 is a deficient number, since it is larger than the sum of its proper divisors (41751886).

42080384 is an equidigital number, since it uses as much as digits as its factorization.

42080384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328767 (or 328755 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 42080384 is about 6486.9394940912. The cubic root of 42080384 is about 347.8242826283.

The spelling of 42080384 in words is "forty-two million, eighty thousand, three hundred eighty-four".