5851440 has 240 divisors, whose sum is σ = 23831808. Its totient is φ = 1306368.

The previous prime is 5851429. The next prime is 5851441. The reversal of 5851440 is 441585.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5851441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136059 + ... + 136101.

Almost surely, 2^5851440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5851440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11915904).

5851440 is an abundant number, since it is smaller than the sum of its proper divisors (17980368).

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

5851440 is a wasteful number, since it uses less digits than its factorization.

5851440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 5851440 is about 2418.9749895359. The cubic root of 5851440 is about 180.1997781884.

It can be divided in two parts, 585 and 1440, that added together give a square (2025 = 45²).

The spelling of 5851440 in words is "five million, eight hundred fifty-one thousand, four hundred forty".