11992388 has 6 divisors (see below), whose sum is σ = 20986686. Its totient is φ = 5996192.

The previous prime is 11992373. The next prime is 11992411. The reversal of 11992388 is 88329911.

It can be written as a sum of positive squares in only one way, i.e., 11888704 + 103684 = 3448^2 + 322^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1499045 + ... + 1499052.

It is an arithmetic number, because the mean of its divisors is an integer number (3497781).

Almost surely, 2^11992388 is an apocalyptic number.

It is an amenable number.

11992388 is a deficient number, since it is larger than the sum of its proper divisors (8994298).

11992388 is a wasteful number, since it uses less digits than its factorization.

11992388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998101 (or 2998099 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 11992388 is about 3463.0027432851. The cubic root of 11992388 is about 228.8944295779.

The spelling of 11992388 in words is "eleven million, nine hundred ninety-two thousand, three hundred eighty-eight".