4078542 has 16 divisors (see below), whose sum is σ = 8784720. Its totient is φ = 1254912.

The previous prime is 4078523. The next prime is 4078561. The reversal of 4078542 is 2458704.

It is an interprime number because it is at equal distance from previous prime (4078523) and next prime (4078561).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26067 + ... + 26222.

It is an arithmetic number, because the mean of its divisors is an integer number (549045).

Almost surely, 2^4078542 is an apocalyptic number.

4078542 is an abundant number, since it is smaller than the sum of its proper divisors (4706178).

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

4078542 is a wasteful number, since it uses less digits than its factorization.

4078542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52307.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 4078542 is about 2019.5400466443. The cubic root of 4078542 is about 159.7723585664.

The spelling of 4078542 in words is "four million, seventy-eight thousand, five hundred forty-two".