2858247840 has 384 divisors, whose sum is σ = 10712604672. Its totient is φ = 627056640.

The previous prime is 2858247827. The next prime is 2858247853. The reversal of 2858247840 is 487428582.

It is an interprime number because it is at equal distance from previous prime (2858247827) and next prime (2858247853).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2858247840.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10546905 + ... + 10547175.

It is an arithmetic number, because the mean of its divisors is an integer number (27897408).

Almost surely, 2^2858247840 is an apocalyptic number.

2858247840 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 2858247840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5356302336).

2858247840 is an abundant number, since it is smaller than the sum of its proper divisors (7854356832).

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

2858247840 is a wasteful number, since it uses less digits than its factorization.

2858247840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 48.

The square root of 2858247840 is about 53462.5835514895. The cubic root of 2858247840 is about 1419.1663161669.

The spelling of 2858247840 in words is "two billion, eight hundred fifty-eight million, two hundred forty-seven thousand, eight hundred forty".