11287590 has 32 divisors (see below), whose sum is σ = 27825120. Its totient is φ = 2928384.

The previous prime is 11287589. The next prime is 11287597. The reversal of 11287590 is 9578211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3975 + ... + 6194.

It is an arithmetic number, because the mean of its divisors is an integer number (869535).

Almost surely, 2^11287590 is an apocalyptic number.

11287590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11287590 is an abundant number, since it is smaller than the sum of its proper divisors (16537530).

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

11287590 is a wasteful number, since it uses less digits than its factorization.

11287590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10216.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 11287590 is about 3359.7008795427. The cubic root of 11287590 is about 224.3195243343.

The spelling of 11287590 in words is "eleven million, two hundred eighty-seven thousand, five hundred ninety".