2949920 has 48 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 1161984.

The previous prime is 2949917. The next prime is 2949923. The reversal of 2949920 is 299492.

It is an interprime number because it is at equal distance from previous prime (2949917) and next prime (2949923).

It is not an unprimeable number, because it can be changed into a prime (2949923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16391 + ... + 16569.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^2949920 is an apocalyptic number.

2949920 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 2949920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3538080).

2949920 is an abundant number, since it is smaller than the sum of its proper divisors (4126240).

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

2949920 is a wasteful number, since it uses less digits than its factorization.

2949920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 2949920 is about 1717.5331146735. The cubic root of 2949920 is about 143.4179177451.

The spelling of 2949920 in words is "two million, nine hundred forty-nine thousand, nine hundred twenty".