11405992 has 16 divisors (see below), whose sum is σ = 23031540. Its totient is φ = 5264256.

The previous prime is 11405987. The next prime is 11406001. The reversal of 11405992 is 29950411.

It can be written as a sum of positive squares in 2 ways, for example, as 10074276 + 1331716 = 3174^2 + 1154^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54733 + ... + 54940.

Almost surely, 2^11405992 is an apocalyptic number.

It is an amenable number.

11405992 is an abundant number, since it is smaller than the sum of its proper divisors (11625548).

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

11405992 is a wasteful number, since it uses less digits than its factorization.

11405992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109692 (or 109688 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 11405992 is about 3377.2758252769. The cubic root of 11405992 is about 225.1011364259.

The spelling of 11405992 in words is "eleven million, four hundred five thousand, nine hundred ninety-two".