11992445 has 8 divisors (see below), whose sum is σ = 14483544. Its totient is φ = 9532224.

The previous prime is 11992433. The next prime is 11992447. The reversal of 11992445 is 54429911.

It can be written as a sum of positive squares in 4 ways, for example, as 13924 + 11978521 = 118^2 + 3461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11992445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11992447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6854 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1810443).

Almost surely, 2^11992445 is an apocalyptic number.

It is an amenable number.

11992445 is a deficient number, since it is larger than the sum of its proper divisors (2491099).

11992445 is a wasteful number, since it uses less digits than its factorization.

11992445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15439.

The product of its digits is 12960, while the sum is 35.

The square root of 11992445 is about 3463.0109731273. The cubic root of 11992445 is about 228.8947922235.

The spelling of 11992445 in words is "eleven million, nine hundred ninety-two thousand, four hundred forty-five".