13922540 has 24 divisors (see below), whose sum is σ = 29919120. Its totient is φ = 5439168.

The previous prime is 13922539. The next prime is 13922543. The reversal of 13922540 is 4522931.

13922540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13922543) 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, 7235 + ... + 8954.

It is an arithmetic number, because the mean of its divisors is an integer number (1246630).

Almost surely, 2^13922540 is an apocalyptic number.

13922540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13922540 is an abundant number, since it is smaller than the sum of its proper divisors (15996580).

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

13922540 is a wasteful number, since it uses less digits than its factorization.

13922540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16241 (or 16239 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13922540 is about 3731.2920014386. The cubic root of 13922540 is about 240.5689050103.

The spelling of 13922540 in words is "thirteen million, nine hundred twenty-two thousand, five hundred forty".