4072578 has 8 divisors (see below), whose sum is σ = 8145168. Its totient is φ = 1357524.

The previous prime is 4072577. The next prime is 4072583. The reversal of 4072578 is 8752704.

It is a sphenic number, since it is the product of 3 distinct primes.

4072578 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (4072577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339376 + ... + 339387.

It is an arithmetic number, because the mean of its divisors is an integer number (1018146).

Almost surely, 2^4072578 is an apocalyptic number.

4072578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4072578 is a wasteful number, since it uses less digits than its factorization.

4072578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678768.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 4072578 is about 2018.0629326163. The cubic root of 4072578 is about 159.6944428809.

The spelling of 4072578 in words is "four million, seventy-two thousand, five hundred seventy-eight".