11398818 has 16 divisors (see below), whose sum is σ = 22895136. Its totient is φ = 3783360.

The previous prime is 11398813. The next prime is 11398819. The reversal of 11398818 is 81889311.

It is not an unprimeable number, because it can be changed into a prime (11398813) 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, 2496 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (1430946).

Almost surely, 2^11398818 is an apocalyptic number.

11398818 is an abundant number, since it is smaller than the sum of its proper divisors (11496318).

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

11398818 is a wasteful number, since it uses less digits than its factorization.

11398818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8129.

The product of its digits is 13824, while the sum is 39.

The square root of 11398818 is about 3376.2135595960. The cubic root of 11398818 is about 225.0539327502.

The spelling of 11398818 in words is "eleven million, three hundred ninety-eight thousand, eight hundred eighteen".