4025819 has 8 divisors (see below), whose sum is σ = 4623360. Its totient is φ = 3433896.

The previous prime is 4025807. The next prime is 4025837. The reversal of 4025819 is 9185204.

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

It is a cyclic number.

It is not a de Polignac number, because 4025819 - 2¹⁶ = 3960283 is a prime.

It is a super-2 number, since 2×4025819² = 32414437241522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4025791 and 4025800.

It is not an unprimeable number, because it can be changed into a prime (4025839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (577920).

Almost surely, 2^4025819 is an apocalyptic number.

4025819 is a deficient number, since it is larger than the sum of its proper divisors (597541).

4025819 is a wasteful number, since it uses less digits than its factorization.

4025819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 4025819 is about 2006.4443675318. Note that the first 3 decimals coincide. The cubic root of 4025819 is about 159.0809155281.

The spelling of 4025819 in words is "four million, twenty-five thousand, eight hundred nineteen".