11573420 has 24 divisors (see below), whose sum is σ = 24640224. Its totient is φ = 4565376.

The previous prime is 11573411. The next prime is 11573423. The reversal of 11573420 is 2437511.

11573420 is nontrivially palindromic in base 3.

It is not an unprimeable number, because it can be changed into a prime (11573423) 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, 2504 + ... + 5423.

It is an arithmetic number, because the mean of its divisors is an integer number (1026676).

Almost surely, 2^11573420 is an apocalyptic number.

11573420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11573420 is an abundant number, since it is smaller than the sum of its proper divisors (13066804).

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

11573420 is a wasteful number, since it uses less digits than its factorization.

11573420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009 (or 8007 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 11573420 is about 3401.9729569766. The cubic root of 11573420 is about 226.1972069369.

The spelling of 11573420 in words is "eleven million, five hundred seventy-three thousand, four hundred twenty".