13422690 has 96 divisors (see below), whose sum is σ = 38278656. Its totient is φ = 3248640.

The previous prime is 13422671. The next prime is 13422691. The reversal of 13422690 is 9622431.

It is a super-2 number, since 2×13422690² = 360337213672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13422691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47289 + ... + 47571.

It is an arithmetic number, because the mean of its divisors is an integer number (398736).

Almost surely, 2^13422690 is an apocalyptic number.

13422690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13422690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19139328).

13422690 is an abundant number, since it is smaller than the sum of its proper divisors (24855966).

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

13422690 is a wasteful number, since it uses less digits than its factorization.

13422690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13422690 is about 3663.6989505144. The cubic root of 13422690 is about 237.6547615504.

The spelling of 13422690 in words is "thirteen million, four hundred twenty-two thousand, six hundred ninety".