4619979840 has 448 divisors, whose sum is σ = 18246449664. Its totient is φ = 966131712.

The previous prime is 4619979839. The next prime is 4619979853. The reversal of 4619979840 is 489799164.

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4226334 + ... + 4227426.

Almost surely, 2^4619979840 is an apocalyptic number.

4619979840 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 4619979840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9123224832).

4619979840 is an abundant number, since it is smaller than the sum of its proper divisors (13626469824).

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

4619979840 is a wasteful number, since it uses less digits than its factorization.

4619979840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 4619979840 is about 67970.4335722526. The cubic root of 4619979840 is about 1665.5078864349.

The spelling of 4619979840 in words is "four billion, six hundred nineteen million, nine hundred seventy-nine thousand, eight hundred forty".