2939649120 has 144 divisors (see below), whose sum is σ = 10181611440. Its totient is φ = 772180992.

The previous prime is 2939649079. The next prime is 2939649143. The reversal of 2939649120 is 219469392.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 81246 + ... + 111714.

It is an arithmetic number, because the mean of its divisors is an integer number (70705635).

Almost surely, 2^2939649120 is an apocalyptic number.

2939649120 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 2939649120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5090805720).

2939649120 is an abundant number, since it is smaller than the sum of its proper divisors (7241962320).

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

2939649120 is a wasteful number, since it uses less digits than its factorization.

2939649120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30557 (or 30546 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 2939649120 is about 54218.5311494142. The cubic root of 2939649120 is about 1432.5127581258.

The spelling of 2939649120 in words is "two billion, nine hundred thirty-nine million, six hundred forty-nine thousand, one hundred twenty".