4990690128 has 40 divisors (see below), whose sum is σ = 12978016576. Its totient is φ = 1652544000.

The previous prime is 4990690099. The next prime is 4990690139. The reversal of 4990690128 is 8210960994.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337033 + ... + 351528.

Almost surely, 2^4990690128 is an apocalyptic number.

4990690128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4990690128 is an abundant number, since it is smaller than the sum of its proper divisors (7987326448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4990690128 is a wasteful number, since it uses less digits than its factorization.

4990690128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688723 (or 688717 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 4990690128 is about 70644.8167100743. The cubic root of 4990690128 is about 1708.9139768044.

The spelling of 4990690128 in words is "four billion, nine hundred ninety million, six hundred ninety thousand, one hundred twenty-eight".