2900020320 has 504 divisors, whose sum is σ = 10966759776. Its totient is φ = 723976704.

The previous prime is 2900020313. The next prime is 2900020379. The reversal of 2900020320 is 230200092.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2900020293 and 2900020302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 61702537 + ... + 61702583.

It is an arithmetic number, because the mean of its divisors is an integer number (21759444).

Almost surely, 2^2900020320 is an apocalyptic number.

2900020320 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 2900020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5483379888).

2900020320 is an abundant number, since it is smaller than the sum of its proper divisors (8066739456).

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

2900020320 is an equidigital number, since it uses as much as digits as its factorization.

2900020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2900020320 is about 53851.8367374781. The cubic root of 2900020320 is about 1426.0464778469.

The spelling of 2900020320 in words is "two billion, nine hundred million, twenty thousand, three hundred twenty".