2858920 has 16 divisors (see below), whose sum is σ = 6432660. Its totient is φ = 1143552.

The previous prime is 2858903. The next prime is 2858927. The reversal of 2858920 is 298582.

It can be written as a sum of positive squares in 2 ways, for example, as 2802276 + 56644 = 1674^2 + 238^2 .

It is not an unprimeable number, because it can be changed into a prime (2858927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35697 + ... + 35776.

2^2858920 is an apocalyptic number.

2858920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2858920 is an abundant number, since it is smaller than the sum of its proper divisors (3573740).

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

2858920 is a wasteful number, since it uses less digits than its factorization.

2858920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71484 (or 71480 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2858920 is about 1690.8341136847. The cubic root of 2858920 is about 141.9277553554.

The spelling of 2858920 in words is "two million, eight hundred fifty-eight thousand, nine hundred twenty".