2858540 has 24 divisors (see below), whose sum is σ = 6132672. Its totient is φ = 1118720.

The previous prime is 2858519. The next prime is 2858543. The reversal of 2858540 is 458582.

It is a junction number, because it is equal to n+sod(n) for n = 2858497 and 2858506.

It is not an unprimeable number, because it can be changed into a prime (2858543) 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, 581 + ... + 2460.

It is an arithmetic number, because the mean of its divisors is an integer number (255528).

2^2858540 is an apocalyptic number.

2858540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2858540 is an abundant number, since it is smaller than the sum of its proper divisors (3274132).

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

2858540 is a wasteful number, since it uses less digits than its factorization.

2858540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3095 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 2858540 is about 1690.7217393764. The cubic root of 2858540 is about 141.9214668576.

The spelling of 2858540 in words is "two million, eight hundred fifty-eight thousand, five hundred forty".