11285438 has 8 divisors (see below), whose sum is σ = 17040720. Its totient is φ = 5605200.

The previous prime is 11285431. The next prime is 11285441. The reversal of 11285438 is 83458211.

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

It is a super-2 number, since 2×11285438² = 254722221703688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18383 + ... + 18986.

It is an arithmetic number, because the mean of its divisors is an integer number (2130090).

Almost surely, 2^11285438 is an apocalyptic number.

11285438 is a deficient number, since it is larger than the sum of its proper divisors (5755282).

11285438 is a wasteful number, since it uses less digits than its factorization.

11285438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37522.

The product of its digits is 7680, while the sum is 32.

The square root of 11285438 is about 3359.3805976698. The cubic root of 11285438 is about 224.3052677836.

The spelling of 11285438 in words is "eleven million, two hundred eighty-five thousand, four hundred thirty-eight".