4930649840 has 80 divisors (see below), whose sum is σ = 12096993600. Its totient is φ = 1865250816.

The previous prime is 4930649833. The next prime is 4930649869. The reversal of 4930649840 is 489460394.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×4930649840² = 48622615689384051200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 148706 + ... + 178814.

It is an arithmetic number, because the mean of its divisors is an integer number (151212420).

Almost surely, 2^4930649840 is an apocalyptic number.

4930649840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4930649840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6048496800).

4930649840 is an abundant number, since it is smaller than the sum of its proper divisors (7166343760).

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

4930649840 is a wasteful number, since it uses less digits than its factorization.

4930649840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30234 (or 30228 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 4930649840 is about 70218.5861435560. The cubic root of 4930649840 is about 1702.0333040984.

The spelling of 4930649840 in words is "four billion, nine hundred thirty million, six hundred forty-nine thousand, eight hundred forty".