5811400 has 72 divisors (see below), whose sum is σ = 15743970. Its totient is φ = 1989120.

The previous prime is 5811391. The next prime is 5811401. The reversal of 5811400 is 41185.

It can be written as a sum of positive squares in 3 ways, for example, as 4588164 + 1223236 = 2142^2 + 1106^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5811401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9504 + ... + 10096.

Almost surely, 2^5811400 is an apocalyptic number.

5811400 is a gapful number since it is divisible by the number (50) 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 5811400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7871985).

5811400 is an abundant number, since it is smaller than the sum of its proper divisors (9932570).

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

5811400 is a wasteful number, since it uses less digits than its factorization.

5811400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 5811400 is about 2410.6845500812. The cubic root of 5811400 is about 179.7878158190.

Adding to 5811400 its reverse (41185), we get a palindrome (5852585).

The spelling of 5811400 in words is "five million, eight hundred eleven thousand, four hundred".