4990529421 has 8 divisors (see below), whose sum is σ = 7393376960. Its totient is φ = 3327019596.

The previous prime is 4990529393. The next prime is 4990529447. The reversal of 4990529421 is 1249250994.

4990529421 is a `hidden beast` number, since 499 + 0 + 52 + 94 + 21 = 666.

It is not a de Polignac number, because 4990529421 - 2⁹ = 4990528909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990529021) 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, 92417185 + ... + 92417238.

It is an arithmetic number, because the mean of its divisors is an integer number (924172120).

Almost surely, 2^4990529421 is an apocalyptic number.

It is an amenable number.

4990529421 is a deficient number, since it is larger than the sum of its proper divisors (2402847539).

4990529421 is a wasteful number, since it uses less digits than its factorization.

4990529421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184834432 (or 184834426 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 4990529421 is about 70643.6792713970. The cubic root of 4990529421 is about 1708.8956334905.

The spelling of 4990529421 in words is "four billion, nine hundred ninety million, five hundred twenty-nine thousand, four hundred twenty-one".