4058215 has 16 divisors (see below), whose sum is σ = 5686272. Its totient is φ = 2722464.

The previous prime is 4058209. The next prime is 4058227. The reversal of 4058215 is 5128504.

It is a cyclic number.

It is not a de Polignac number, because 4058215 - 2¹³ = 4050023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4058215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (355392).

Almost surely, 2^4058215 is an apocalyptic number.

4058215 is the 1645-th pentagonal number.

4058215 is a deficient number, since it is larger than the sum of its proper divisors (1628057).

4058215 is a wasteful number, since it uses less digits than its factorization.

4058215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4058215 is about 2014.5011789522. The cubic root of 4058215 is about 159.5064871593.

It can be divided in two parts, 405821 and 5, that multiplied together give a triangular number (2029105 = T₂₀₁₄).

The spelling of 4058215 in words is "four million, fifty-eight thousand, two hundred fifteen".