11943900 has 108 divisors (see below), whose sum is σ = 39132912. Its totient is φ = 3041280.

The previous prime is 11943881. The next prime is 11943907. The reversal of 11943900 is 934911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11943907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20412 + ... + 20988.

Almost surely, 2^11943900 is an apocalyptic number.

11943900 is a gapful number since it is divisible by the number (10) 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 11943900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19566456).

11943900 is an abundant number, since it is smaller than the sum of its proper divisors (27189012).

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

11943900 is a wasteful number, since it uses less digits than its factorization.

11943900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 11943900 is about 3455.9947916627. The cubic root of 11943900 is about 228.5855218245.

The spelling of 11943900 in words is "eleven million, nine hundred forty-three thousand, nine hundred".