4640720435 has 16 divisors (see below), whose sum is σ = 6350018976. Its totient is φ = 3225404928.

The previous prime is 4640720431. The next prime is 4640720437. The reversal of 4640720435 is 5340270464.

It is a cyclic number.

It is not a de Polignac number, because 4640720435 - 2² = 4640720431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4640720395 and 4640720404.

It is not an unprimeable number, because it can be changed into a prime (4640720431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2098769 + ... + 2100978.

It is an arithmetic number, because the mean of its divisors is an integer number (396876186).

Almost surely, 2^4640720435 is an apocalyptic number.

4640720435 is a deficient number, since it is larger than the sum of its proper divisors (1709298541).

4640720435 is a wasteful number, since it uses less digits than its factorization.

4640720435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199782.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 4640720435 is about 68122.8334334385. The cubic root of 4640720435 is about 1667.9965019518.

Adding to 4640720435 its reverse (5340270464), we get a palindrome (9980990899).

The spelling of 4640720435 in words is "four billion, six hundred forty million, seven hundred twenty thousand, four hundred thirty-five".