4390492 has 12 divisors (see below), whose sum is σ = 7715736. Its totient is φ = 2186000.

The previous prime is 4390489. The next prime is 4390523. The reversal of 4390492 is 2940934.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183 + ... + 3190.

It is an arithmetic number, because the mean of its divisors is an integer number (642978).

Almost surely, 2^4390492 is an apocalyptic number.

It is an amenable number.

4390492 is a deficient number, since it is larger than the sum of its proper divisors (3325244).

4390492 is a wasteful number, since it uses less digits than its factorization.

4390492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628 (or 4626 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 4390492 is about 2095.3500900804. The cubic root of 4390492 is about 163.7461370804.

The spelling of 4390492 in words is "four million, three hundred ninety thousand, four hundred ninety-two".