11420945 has 8 divisors (see below), whose sum is σ = 13767936. Its totient is φ = 9094896.

The previous prime is 11420939. The next prime is 11420947. The reversal of 11420945 is 54902411.

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

It is a cyclic number.

It is not a de Polignac number, because 11420945 - 2¹⁰ = 11419921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4007 + ... + 6236.

It is an arithmetic number, because the mean of its divisors is an integer number (1720992).

Almost surely, 2^11420945 is an apocalyptic number.

It is an amenable number.

11420945 is a deficient number, since it is larger than the sum of its proper divisors (2346991).

11420945 is a wasteful number, since it uses less digits than its factorization.

11420945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10471.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 11420945 is about 3379.4888666779. The cubic root of 11420945 is about 225.1994609870.

The spelling of 11420945 in words is "eleven million, four hundred twenty thousand, nine hundred forty-five".