13455690 has 32 divisors (see below), whose sum is σ = 33699456. Its totient is φ = 3432000.

The previous prime is 13455661. The next prime is 13455697. The reversal of 13455690 is 9655431.

It is a happy number.

It is a super-2 number, since 2×13455690² = 362111186752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13455697) 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 15 ways as a sum of consecutive naturals, for example, 9061 + ... + 10440.

It is an arithmetic number, because the mean of its divisors is an integer number (1053108).

Almost surely, 2^13455690 is an apocalyptic number.

13455690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13455690 is an abundant number, since it is smaller than the sum of its proper divisors (20243766).

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

13455690 is a wasteful number, since it uses less digits than its factorization.

13455690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19534.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 13455690 is about 3668.1998309798. The cubic root of 13455690 is about 237.8493621066.

The spelling of 13455690 in words is "thirteen million, four hundred fifty-five thousand, six hundred ninety".