11999942 has 16 divisors (see below), whose sum is σ = 18584640. Its totient is φ = 5808192.

The previous prime is 11999941. The next prime is 11999987. The reversal of 11999942 is 24999911.

It is a junction number, because it is equal to n+sod(n) for n = 11999893 and 11999902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11999941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7658 + ... + 9090.

It is an arithmetic number, because the mean of its divisors is an integer number (1161540).

Almost surely, 2^11999942 is an apocalyptic number.

11999942 is a deficient number, since it is larger than the sum of its proper divisors (6584698).

11999942 is a wasteful number, since it uses less digits than its factorization.

11999942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567.

The product of its digits is 52488, while the sum is 44.

The square root of 11999942 is about 3464.0932435487. The cubic root of 11999942 is about 228.9424796577.

The spelling of 11999942 in words is "eleven million, nine hundred ninety-nine thousand, nine hundred forty-two".