4640454431 has 8 divisors (see below), whose sum is σ = 4783484160. Its totient is φ = 4499270488.

The previous prime is 4640454409. The next prime is 4640454461. The reversal of 4640454431 is 1344540464.

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 4640454431 - 2¹⁸ = 4640192287 is a prime.

It is a super-2 number, since 2×4640454431² = 43067634652375067522, 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 = 4640454391 and 4640454400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640454461) 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 7 ways as a sum of consecutive naturals, for example, 456341 + ... + 466398.

It is an arithmetic number, because the mean of its divisors is an integer number (597935520).

Almost surely, 2^4640454431 is an apocalyptic number.

4640454431 is a deficient number, since it is larger than the sum of its proper divisors (143029729).

4640454431 is a wasteful number, since it uses less digits than its factorization.

4640454431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922893.

The product of its (nonzero) digits is 92160, while the sum is 35.

The square root of 4640454431 is about 68120.8810204331. The cubic root of 4640454431 is about 1667.9646317407.

Adding to 4640454431 its reverse (1344540464), we get a palindrome (5984994895).

The spelling of 4640454431 in words is "four billion, six hundred forty million, four hundred fifty-four thousand, four hundred thirty-one".