11398950 has 72 divisors (see below), whose sum is σ = 31134168. Its totient is φ = 2989440.

The previous prime is 11398949. The next prime is 11398963. The reversal of 11398950 is 5989311.

It is a happy number.

It is a super-2 number, since 2×11398950² = 259872122205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32677 + ... + 33023.

It is an arithmetic number, because the mean of its divisors is an integer number (432419).

Almost surely, 2^11398950 is an apocalyptic number.

11398950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11398950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15567084).

11398950 is an abundant number, since it is smaller than the sum of its proper divisors (19735218).

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

11398950 is a wasteful number, since it uses less digits than its factorization.

11398950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 11398950 is about 3376.2331080659. The cubic root of 11398950 is about 225.0548014662.

The spelling of 11398950 in words is "eleven million, three hundred ninety-eight thousand, nine hundred fifty".