2829920 has 48 divisors (see below), whose sum is σ = 6985440. Its totient is φ = 1081344.

The previous prime is 2829913. The next prime is 2829923. The reversal of 2829920 is 299282.

2829920 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2829923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3296 + ... + 4064.

It is an arithmetic number, because the mean of its divisors is an integer number (145530).

2^2829920 is an apocalyptic number.

2829920 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 2829920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3492720).

2829920 is an abundant number, since it is smaller than the sum of its proper divisors (4155520).

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

2829920 is a wasteful number, since it uses less digits than its factorization.

2829920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2829920 is about 1682.2366064261. The cubic root of 2829920 is about 141.4462331153.

The spelling of 2829920 in words is "two million, eight hundred twenty-nine thousand, nine hundred twenty".