2834820 has 36 divisors (see below), whose sum is σ = 8599500. Its totient is φ = 755904.

The previous prime is 2834813. The next prime is 2834833. The reversal of 2834820 is 284382.

It can be written as a sum of positive squares in 2 ways, for example, as 419904 + 2414916 = 648^2 + 1554^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7695 + ... + 8054.

It is an arithmetic number, because the mean of its divisors is an integer number (238875).

2^2834820 is an apocalyptic number.

2834820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2834820 is an abundant number, since it is smaller than the sum of its proper divisors (5764680).

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

2834820 is a wasteful number, since it uses less digits than its factorization.

2834820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15764 (or 15759 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2834820 is about 1683.6923709514. The cubic root of 2834820 is about 141.5278239848.

The spelling of 2834820 in words is "two million, eight hundred thirty-four thousand, eight hundred twenty".