13422540 has 48 divisors (see below), whose sum is σ = 37749600. Its totient is φ = 3563520.

The previous prime is 13422533. The next prime is 13422581. The reversal of 13422540 is 4522431.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20620 + ... + 21260.

It is an arithmetic number, because the mean of its divisors is an integer number (786450).

Almost surely, 2^13422540 is an apocalyptic number.

13422540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13422540 is an abundant number, since it is smaller than the sum of its proper divisors (24327060).

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

13422540 is a wasteful number, since it uses less digits than its factorization.

13422540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13422540 is about 3663.6784793429. The cubic root of 13422540 is about 237.6538762746.

Adding to 13422540 its reverse (4522431), we get a palindrome (17944971).

The spelling of 13422540 in words is "thirteen million, four hundred twenty-two thousand, five hundred forty".