11918948 has 6 divisors (see below), whose sum is σ = 20858166. Its totient is φ = 5959472.

The previous prime is 11918941. The next prime is 11918981. The reversal of 11918948 is 84981911.

It can be written as a sum of positive squares in only one way, i.e., 8988004 + 2930944 = 2998^2 + 1712^2 .

It is a super-2 number, since 2×11918948² = 284122642853408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11918941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489865 + ... + 1489872.

It is an arithmetic number, because the mean of its divisors is an integer number (3476361).

Almost surely, 2^11918948 is an apocalyptic number.

It is an amenable number.

11918948 is a deficient number, since it is larger than the sum of its proper divisors (8939218).

11918948 is a wasteful number, since it uses less digits than its factorization.

11918948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979741 (or 2979739 counting only the distinct ones).

The product of its digits is 20736, while the sum is 41.

The square root of 11918948 is about 3452.3829451554. The cubic root of 11918948 is about 228.4262315201.

The spelling of 11918948 in words is "eleven million, nine hundred eighteen thousand, nine hundred forty-eight".