13490638 has 16 divisors (see below), whose sum is σ = 23507424. Its totient is φ = 5686560.

The previous prime is 13490629. The next prime is 13490641. The reversal of 13490638 is 83609431.

It is a congruent number.

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, 7045 + ... + 8752.

It is an arithmetic number, because the mean of its divisors is an integer number (1469214).

Almost surely, 2^13490638 is an apocalyptic number.

13490638 is a deficient number, since it is larger than the sum of its proper divisors (10016786).

13490638 is a wasteful number, since it uses less digits than its factorization.

13490638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15867.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 13490638 is about 3672.9603863913. The cubic root of 13490638 is about 238.0551034052.

The spelling of 13490638 in words is "thirteen million, four hundred ninety thousand, six hundred thirty-eight".