13645290 has 16 divisors (see below), whose sum is σ = 32748768. Its totient is φ = 3638736.

The previous prime is 13645259. The next prime is 13645321. The reversal of 13645290 is 9254631.

13645290 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13645259) and next prime (13645321).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 454843 = 13645290 / (1 + 3 + 6 + 4 + 5 + 2 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227392 + ... + 227451.

It is an arithmetic number, because the mean of its divisors is an integer number (2046798).

Almost surely, 2^13645290 is an apocalyptic number.

13645290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13645290 is an abundant number, since it is smaller than the sum of its proper divisors (19103478).

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

13645290 is a wasteful number, since it uses less digits than its factorization.

13645290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454853.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13645290 is about 3693.9531670014. The cubic root of 13645290 is about 238.9613097737.

The spelling of 13645290 in words is "thirteen million, six hundred forty-five thousand, two hundred ninety".