4090398 has 24 divisors (see below), whose sum is σ = 8848728. Its totient is φ = 1253088.

The previous prime is 4090397. The next prime is 4090403. The reversal of 4090398 is 8930904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090397) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17748 + ... + 17976.

It is an arithmetic number, because the mean of its divisors is an integer number (368697).

Almost surely, 2^4090398 is an apocalyptic number.

4090398 is an abundant number, since it is smaller than the sum of its proper divisors (4758330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4090398 is a wasteful number, since it uses less digits than its factorization.

4090398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4090398 is about 2022.4732383891. The cubic root of 4090398 is about 159.9270240124.

The spelling of 4090398 in words is "four million, ninety thousand, three hundred ninety-eight".