4078428 has 24 divisors (see below), whose sum is σ = 9584400. Its totient is φ = 1349760.

The previous prime is 4078411. The next prime is 4078439. The reversal of 4078428 is 8248704.

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, 648 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (399350).

Almost surely, 2^4078428 is an apocalyptic number.

It is an amenable number.

4078428 is an abundant number, since it is smaller than the sum of its proper divisors (5505972).

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

4078428 is a wasteful number, since it uses less digits than its factorization.

4078428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 4078428 is about 2019.5118221986. The cubic root of 4078428 is about 159.7708699447.

The spelling of 4078428 in words is "four million, seventy-eight thousand, four hundred twenty-eight".