11385890 has 8 divisors (see below), whose sum is σ = 20494620. Its totient is φ = 4554352.

The previous prime is 11385889. The next prime is 11385901. The reversal of 11385890 is 9858311.

11385890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10310521 + 1075369 = 3211^2 + 1037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11385890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569285 + ... + 569304.

Almost surely, 2^11385890 is an apocalyptic number.

11385890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11385890 is a deficient number, since it is larger than the sum of its proper divisors (9108730).

11385890 is a wasteful number, since it uses less digits than its factorization.

11385890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138596.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 11385890 is about 3374.2984456032. The cubic root of 11385890 is about 224.9688187243.

The spelling of 11385890 in words is "eleven million, three hundred eighty-five thousand, eight hundred ninety".