11871400 has 24 divisors (see below), whose sum is σ = 27601470. Its totient is φ = 4748480.

The previous prime is 11871373. The next prime is 11871403. The reversal of 11871400 is 417811.

It can be written as a sum of positive squares in 3 ways, for example, as 8892324 + 2979076 = 2982^2 + 1726^2 .

It is not an unprimeable number, because it can be changed into a prime (11871403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29479 + ... + 29878.

Almost surely, 2^11871400 is an apocalyptic number.

11871400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11871400 is an abundant number, since it is smaller than the sum of its proper divisors (15730070).

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

11871400 is a wasteful number, since it uses less digits than its factorization.

11871400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59373 (or 59364 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11871400 is about 3445.4898055284. The cubic root of 11871400 is about 228.1220747733.

The spelling of 11871400 in words is "eleven million, eight hundred seventy-one thousand, four hundred".