4949522640 has 120 divisors (see below), whose sum is σ = 16850026440. Its totient is φ = 1301778432.

The previous prime is 4949522639. The next prime is 4949522653. The reversal of 4949522640 is 462259494.

4949522640 is a `hidden beast` number, since 49 + 49 + 522 + 6 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 173606976 + 4775915664 = 13176^2 + 69108^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5476 + ... + 99644.

It is an arithmetic number, because the mean of its divisors is an integer number (140416887).

Almost surely, 2^4949522640 is an apocalyptic number.

4949522640 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 4949522640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8425013220).

4949522640 is an abundant number, since it is smaller than the sum of its proper divisors (11900503800).

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

4949522640 is a wasteful number, since it uses less digits than its factorization.

4949522640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94261 (or 94252 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 4949522640 is about 70352.8438657600. The cubic root of 4949522640 is about 1704.2021349842.

The spelling of 4949522640 in words is "four billion, nine hundred forty-nine million, five hundred twenty-two thousand, six hundred forty".