11487420 has 120 divisors (see below), whose sum is σ = 41225184. Its totient is φ = 2623104.

The previous prime is 11487403. The next prime is 11487431. The reversal of 11487420 is 2478411.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 10834 + ... + 11846.

Almost surely, 2^11487420 is an apocalyptic number.

11487420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11487420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20612592).

11487420 is an abundant number, since it is smaller than the sum of its proper divisors (29737764).

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

11487420 is a wasteful number, since it uses less digits than its factorization.

11487420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 11487420 is about 3389.3096642237. The cubic root of 11487420 is about 225.6355365025.

Subtracting from 11487420 its reverse (2478411), we obtain a palindrome (9009009).

It can be divided in two parts, 114 and 87420, that multiplied together give a triangular number (9965880 = T₄₄₆₄).

The spelling of 11487420 in words is "eleven million, four hundred eighty-seven thousand, four hundred twenty".