4949057640 has 128 divisors (see below), whose sum is σ = 15439248000. Its totient is φ = 1267596288.

The previous prime is 4949057639. The next prime is 4949057657. The reversal of 4949057640 is 467509494.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4949057640.

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, 681951 + ... + 689169.

It is an arithmetic number, because the mean of its divisors is an integer number (120619125).

Almost surely, 2^4949057640 is an apocalyptic number.

4949057640 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 4949057640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7719624000).

4949057640 is an abundant number, since it is smaller than the sum of its proper divisors (10490190360).

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

4949057640 is a wasteful number, since it uses less digits than its factorization.

4949057640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459 (or 7455 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 4949057640 is about 70349.5390176794. The cubic root of 4949057640 is about 1704.1487642608.

The spelling of 4949057640 in words is "four billion, nine hundred forty-nine million, fifty-seven thousand, six hundred forty".