2858740 has 24 divisors (see below), whose sum is σ = 6320160. Its totient is φ = 1083168.

The previous prime is 2858711. The next prime is 2858741. The reversal of 2858740 is 478582.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2858696 and 2858705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858741) 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, 3382 + ... + 4141.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^2858740 is an apocalyptic number.

2858740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2858740 is an abundant number, since it is smaller than the sum of its proper divisors (3461420).

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

2858740 is a wasteful number, since it uses less digits than its factorization.

2858740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7551 (or 7549 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 2858740 is about 1690.7808846802. The cubic root of 2858740 is about 141.9247766628.

It can be divided in two parts, 285 and 8740, that added together give a square (9025 = 95²).

The spelling of 2858740 in words is "two million, eight hundred fifty-eight thousand, seven hundred forty".