3634740431 has 4 divisors (see below), whose sum is σ = 4153989072. Its totient is φ = 3115491792.

The previous prime is 3634740427. The next prime is 3634740443. The reversal of 3634740431 is 1340474363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1340474363 = 13627 ⋅98369.

It is not a de Polignac number, because 3634740431 - 2² = 3634740427 is a prime.

It is a super-2 number, since 2×3634740431² = 26422676001492131522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3634740391 and 3634740400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3634740401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259624310 + ... + 259624323.

It is an arithmetic number, because the mean of its divisors is an integer number (1038497268).

Almost surely, 2^3634740431 is an apocalyptic number.

3634740431 is a deficient number, since it is larger than the sum of its proper divisors (519248641).

3634740431 is an equidigital number, since it uses as much as digits as its factorization.

3634740431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519248640.

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 3634740431 is about 60288.8085053934. The cubic root of 3634740431 is about 1537.5330761254.

The spelling of 3634740431 in words is "three billion, six hundred thirty-four million, seven hundred forty thousand, four hundred thirty-one".