2921130 has 64 divisors (see below), whose sum is σ = 8064000. Its totient is φ = 751680.

The previous prime is 2921129. The next prime is 2921131. The reversal of 2921130 is 311292.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2921129) and next prime (2921131).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2921131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8196 + ... + 8544.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^2921130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2921130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4032000).

2921130 is an abundant number, since it is smaller than the sum of its proper divisors (5142870).

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

2921130 is a wasteful number, since it uses less digits than its factorization.

2921130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2921130 is about 1709.1313583221. The cubic root of 2921130 is about 142.9498250951.

It can be divided in two parts, 29211 and 30, that added together give a square (29241 = 171²).

The spelling of 2921130 in words is "two million, nine hundred twenty-one thousand, one hundred thirty".