4921484640 has 96 divisors (see below), whose sum is σ = 15514009056. Its totient is φ = 1311436800.

The previous prime is 4921484627. The next prime is 4921484647. The reversal of 4921484640 is 464841294.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×4921484640² = 48442022123511859200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4921484592 and 4921484601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921484647) 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, 861634 + ... + 867326.

It is an arithmetic number, because the mean of its divisors is an integer number (161604261).

Almost surely, 2^4921484640 is an apocalyptic number.

4921484640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4921484640 is an abundant number, since it is smaller than the sum of its proper divisors (10592524416).

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

4921484640 is a wasteful number, since it uses less digits than its factorization.

4921484640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 4921484640 is about 70153.2938642228. The cubic root of 4921484640 is about 1700.9780577186.

The spelling of 4921484640 in words is "four billion, nine hundred twenty-one million, four hundred eighty-four thousand, six hundred forty".