2921481300 has 72 divisors (see below), whose sum is σ = 8503580736. Its totient is φ = 774383360.

The previous prime is 2921481259. The next prime is 2921481307. The reversal of 2921481300 is 31841292.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921481307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20944 + ... + 79256.

It is an arithmetic number, because the mean of its divisors is an integer number (118105288).

Almost surely, 2^2921481300 is an apocalyptic number.

2921481300 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 2921481300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4251790368).

2921481300 is an abundant number, since it is smaller than the sum of its proper divisors (5582099436).

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

2921481300 is a wasteful number, since it uses less digits than its factorization.

2921481300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58497 (or 58490 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2921481300 is about 54050.7289497561. The cubic root of 2921481300 is about 1429.5555532743. Note that the first 5 decimals are identical.

The spelling of 2921481300 in words is "two billion, nine hundred twenty-one million, four hundred eighty-one thousand, three hundred".