4056538 has 8 divisors (see below), whose sum is σ = 6405120. Its totient is φ = 1921500.

The previous prime is 4056529. The next prime is 4056539. The reversal of 4056538 is 8356504.

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

It is not an unprimeable number, because it can be changed into a prime (4056539) 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, 53338 + ... + 53413.

It is an arithmetic number, because the mean of its divisors is an integer number (800640).

Almost surely, 2^4056538 is an apocalyptic number.

4056538 is a deficient number, since it is larger than the sum of its proper divisors (2348582).

4056538 is a wasteful number, since it uses less digits than its factorization.

4056538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106772.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4056538 is about 2014.0849038707. The cubic root of 4056538 is about 159.4845128649.

The spelling of 4056538 in words is "four million, fifty-six thousand, five hundred thirty-eight".