2939989920 has 192 divisors, whose sum is σ = 10606692096. Its totient is φ = 670556160.

The previous prime is 2939989903. The next prime is 2939989951. The reversal of 2939989920 is 299899392.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 2879010 + ... + 2880030.

It is an arithmetic number, because the mean of its divisors is an integer number (55243188).

Almost surely, 2^2939989920 is an apocalyptic number.

2939989920 is a gapful number since it is divisible by the number (20) 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 2939989920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5303346048).

2939989920 is an abundant number, since it is smaller than the sum of its proper divisors (7666702176).

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

2939989920 is a wasteful number, since it uses less digits than its factorization.

2939989920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 60.

The square root of 2939989920 is about 54221.6738952239. The cubic root of 2939989920 is about 1432.5681141069.

The spelling of 2939989920 in words is "two billion, nine hundred thirty-nine million, nine hundred eighty-nine thousand, nine hundred twenty".