11445790 has 32 divisors (see below), whose sum is σ = 21928320. Its totient is φ = 4289184.

The previous prime is 11445787. The next prime is 11445803. The reversal of 11445790 is 9754411.

It is a super-2 number, since 2×11445790² = 262012217448200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20049 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (685260).

Almost surely, 2^11445790 is an apocalyptic number.

11445790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11445790 is the 2140-th heptagonal number.

11445790 is a deficient number, since it is larger than the sum of its proper divisors (10482530).

11445790 is a wasteful number, since it uses less digits than its factorization.

11445790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 11445790 is about 3383.1627214782. The cubic root of 11445790 is about 225.3626415395.

The spelling of 11445790 in words is "eleven million, four hundred forty-five thousand, seven hundred ninety".