48779940 has 72 divisors (see below), whose sum is σ = 150151680. Its totient is φ = 11823680.

The previous prime is 48779933. The next prime is 48779999. The reversal of 48779940 is 4997784.

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 48779940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3901 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (2085440).

Almost surely, 2^48779940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48779940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75075840).

48779940 is an abundant number, since it is smaller than the sum of its proper divisors (101371740).

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

48779940 is a wasteful number, since it uses less digits than its factorization.

48779940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6753 (or 6740 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 48779940 is about 6984.2637407246. The cubic root of 48779940 is about 365.3819483348.

The spelling of 48779940 in words is "forty-eight million, seven hundred seventy-nine thousand, nine hundred forty".