4290389 has 4 divisors (see below), whose sum is σ = 4295424. Its totient is φ = 4285356.

The previous prime is 4290373. The next prime is 4290413. The reversal of 4290389 is 9830924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4290389 - 2⁴ = 4290373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4290359) 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, 887 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (1073856).

Almost surely, 2^4290389 is an apocalyptic number.

It is an amenable number.

4290389 is a deficient number, since it is larger than the sum of its proper divisors (5035).

4290389 is a wasteful number, since it uses less digits than its factorization.

4290389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 4290389 is about 2071.3254210770. The cubic root of 4290389 is about 162.4920895558.

The spelling of 4290389 in words is "four million, two hundred ninety thousand, three hundred eighty-nine".