11204520 has 32 divisors (see below), whose sum is σ = 33613920. Its totient is φ = 2987840.

The previous prime is 11204503. The next prime is 11204537. The reversal of 11204520 is 2540211.

It is an interprime number because it is at equal distance from previous prime (11204503) and next prime (11204537).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11204520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46566 + ... + 46805.

It is an arithmetic number, because the mean of its divisors is an integer number (1050435).

Almost surely, 2^11204520 is an apocalyptic number.

11204520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11204520 is an abundant number, since it is smaller than the sum of its proper divisors (22409400).

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

11204520 is a wasteful number, since it uses less digits than its factorization.

11204520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93385 (or 93381 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 11204520 is about 3347.3153421810. The cubic root of 11204520 is about 223.7678824279.

Adding to 11204520 its reverse (2540211), we get a palindrome (13744731).

The spelling of 11204520 in words is "eleven million, two hundred four thousand, five hundred twenty".