11995398 has 16 divisors (see below), whose sum is σ = 26656560. Its totient is φ = 3998448.

The previous prime is 11995391. The next prime is 11995427. The reversal of 11995398 is 89359911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11995391) 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, 111015 + ... + 111122.

It is an arithmetic number, because the mean of its divisors is an integer number (1666035).

Almost surely, 2^11995398 is an apocalyptic number.

11995398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11995398 is an abundant number, since it is smaller than the sum of its proper divisors (14661162).

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

11995398 is a wasteful number, since it uses less digits than its factorization.

11995398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222148 (or 222142 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 11995398 is about 3463.4373099567. The cubic root of 11995398 is about 228.9135782412.

The spelling of 11995398 in words is "eleven million, nine hundred ninety-five thousand, three hundred ninety-eight".