3630431 has 8 divisors (see below), whose sum is σ = 4160640. Its totient is φ = 3103128.

The previous prime is 3630397. The next prime is 3630433. The reversal of 3630431 is 1340363.

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

It is not a de Polignac number, because 3630431 - 2¹⁰ = 3629407 is a prime.

It is a super-2 number, since 2×3630431² = 26360058491522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3630433) 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, 4220 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (520080).

Almost surely, 2^3630431 is an apocalyptic number.

3630431 is a deficient number, since it is larger than the sum of its proper divisors (530209).

3630431 is an equidigital number, since it uses as much as digits as its factorization.

3630431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3630431 is about 1905.3689931349. The cubic root of 3630431 is about 153.6925191082.

Adding to 3630431 its reverse (1340363), we get a palindrome (4970794).

The spelling of 3630431 in words is "three million, six hundred thirty thousand, four hundred thirty-one".