3200400631 has 2 divisors, whose sum is σ = 3200400632. Its totient is φ = 3200400630.

The previous prime is 3200400613. The next prime is 3200400667. The reversal of 3200400631 is 1360040023.

Together with previous prime (3200400613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3200400631 - 2²³ = 3192012023 is a prime.

It is a super-3 number, since 3×3200400631³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3200400599 and 3200400608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3200400611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600200315 + 1600200316.

It is an arithmetic number, because the mean of its divisors is an integer number (1600200316).

Almost surely, 2^3200400631 is an apocalyptic number.

3200400631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3200400631 is an equidigital number, since it uses as much as digits as its factorization.

3200400631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3200400631 is about 56572.0834953071. The cubic root of 3200400631 is about 1473.6740942742.

Adding to 3200400631 its reverse (1360040023), we get a palindrome (4560440654).

The spelling of 3200400631 in words is "three billion, two hundred million, four hundred thousand, six hundred thirty-one".