4078530 has 24 divisors (see below), whose sum is σ = 10604412. Its totient is φ = 1087584.

The previous prime is 4078523. The next prime is 4078561. The reversal of 4078530 is 358704.

It can be written as a sum of positive squares in 2 ways, for example, as 4004001 + 74529 = 2001^2 + 273^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4078494 and 4078503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22569 + ... + 22748.

Almost surely, 2^4078530 is an apocalyptic number.

4078530 is an abundant number, since it is smaller than the sum of its proper divisors (6525882).

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

4078530 is a wasteful number, since it uses less digits than its factorization.

4078530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45330 (or 45327 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 4078530 is about 2019.5370756686. The cubic root of 4078530 is about 159.7722018707.

The spelling of 4078530 in words is "four million, seventy-eight thousand, five hundred thirty".