11923400 has 24 divisors (see below), whose sum is σ = 27722370. Its totient is φ = 4769280.

The previous prime is 11923381. The next prime is 11923403. The reversal of 11923400 is 432911.

It can be written as a sum of positive squares in 3 ways, for example, as 11546404 + 376996 = 3398^2 + 614^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (11923403) 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, 29609 + ... + 30008.

Almost surely, 2^11923400 is an apocalyptic number.

11923400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11923400 is an abundant number, since it is smaller than the sum of its proper divisors (15798970).

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

11923400 is a wasteful number, since it uses less digits than its factorization.

11923400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59633 (or 59624 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11923400 is about 3453.0276569990. The cubic root of 11923400 is about 228.4546687891.

The spelling of 11923400 in words is "eleven million, nine hundred twenty-three thousand, four hundred".