4920953640 has 128 divisors (see below), whose sum is σ = 16041369600. Its totient is φ = 1203068160.

The previous prime is 4920953633. The next prime is 4920953683. The reversal of 4920953640 is 463590294.

It is a junction number, because it is equal to n+sod(n) for n = 4920953592 and 4920953601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35869 + ... + 105491.

It is an arithmetic number, because the mean of its divisors is an integer number (125323200).

Almost surely, 2^4920953640 is an apocalyptic number.

4920953640 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 4920953640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8020684800).

4920953640 is an abundant number, since it is smaller than the sum of its proper divisors (11120415960).

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

4920953640 is a wasteful number, since it uses less digits than its factorization.

4920953640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69687 (or 69683 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 4920953640 is about 70149.5091928661. The cubic root of 4920953640 is about 1700.9168802555.

The spelling of 4920953640 in words is "four billion, nine hundred twenty million, nine hundred fifty-three thousand, six hundred forty".