11715020 has 24 divisors (see below), whose sum is σ = 25897200. Its totient is φ = 4439232.

The previous prime is 11714959. The next prime is 11715029. The reversal of 11715020 is 2051711.

It is a self number, because there is not a number n which added to its sum of digits gives 11715020.

It is not an unprimeable number, because it can be changed into a prime (11715029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15035 + ... + 15794.

It is an arithmetic number, because the mean of its divisors is an integer number (1079050).

Almost surely, 2^11715020 is an apocalyptic number.

11715020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11715020 is an abundant number, since it is smaller than the sum of its proper divisors (14182180).

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

11715020 is a wasteful number, since it uses less digits than its factorization.

11715020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30857 (or 30855 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 11715020 is about 3422.7211396782. The cubic root of 11715020 is about 227.1159724896.

Adding to 11715020 its reverse (2051711), we get a palindrome (13766731).

The spelling of 11715020 in words is "eleven million, seven hundred fifteen thousand, twenty".