4390631 has 8 divisors (see below), whose sum is σ = 5236224. Its totient is φ = 3599640.

The previous prime is 4390621. The next prime is 4390651. The reversal of 4390631 is 1360934.

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 4390631 - 2¹⁰ = 4389607 is a prime.

It is a super-2 number, since 2×4390631² = 38555281156322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4390631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390621) 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, 13475 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (654528).

Almost surely, 2^4390631 is an apocalyptic number.

4390631 is a deficient number, since it is larger than the sum of its proper divisors (845593).

4390631 is a wasteful number, since it uses less digits than its factorization.

4390631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27301.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 4390631 is about 2095.3832584995. The cubic root of 4390631 is about 163.7478650927.

The spelling of 4390631 in words is "four million, three hundred ninety thousand, six hundred thirty-one".