13917020 has 24 divisors (see below), whose sum is σ = 31474464. Its totient is φ = 5138496.

The previous prime is 13916989. The next prime is 13917023. The reversal of 13917020 is 2071931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13917023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26504 + ... + 27023.

It is an arithmetic number, because the mean of its divisors is an integer number (1311436).

Almost surely, 2^13917020 is an apocalyptic number.

13917020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13917020 is an abundant number, since it is smaller than the sum of its proper divisors (17557444).

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

13917020 is a wasteful number, since it uses less digits than its factorization.

13917020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53549 (or 53547 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 13917020 is about 3730.5522379401. The cubic root of 13917020 is about 240.5371072709.

Adding to 13917020 its reverse (2071931), we get a palindrome (15988951).

The spelling of 13917020 in words is "thirteen million, nine hundred seventeen thousand, twenty".