2858193240 has 128 divisors (see below), whose sum is σ = 9854784000. Its totient is φ = 649617408.

The previous prime is 2858193203. The next prime is 2858193241. The reversal of 2858193240 is 423918582.

It is a super-3 number, since 3×2858193240³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 2858193192 and 2858193201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858193241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140856 + ... + 159864.

It is an arithmetic number, because the mean of its divisors is an integer number (76990500).

Almost surely, 2^2858193240 is an apocalyptic number.

2858193240 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 2858193240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4927392000).

2858193240 is an abundant number, since it is smaller than the sum of its proper divisors (6996590760).

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

2858193240 is a wasteful number, since it uses less digits than its factorization.

2858193240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19209 (or 19205 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 2858193240 is about 53462.0729115510. The cubic root of 2858193240 is about 1419.1572795148.

The spelling of 2858193240 in words is "two billion, eight hundred fifty-eight million, one hundred ninety-three thousand, two hundred forty".