13625838 has 24 divisors (see below), whose sum is σ = 29694600. Its totient is φ = 4515504.

The previous prime is 13625819. The next prime is 13625849. The reversal of 13625838 is 83852631.

13625838 is a `hidden beast` number, since 13 + 62 + 583 + 8 = 666.

It is a super-2 number, since 2×13625838² = 371326922404488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1108 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1237275).

Almost surely, 2^13625838 is an apocalyptic number.

13625838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13625838 is an abundant number, since it is smaller than the sum of its proper divisors (16068762).

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

13625838 is a wasteful number, since it uses less digits than its factorization.

13625838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416 (or 4413 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13625838 is about 3691.3192763564. The cubic root of 13625838 is about 238.8477055942.

The spelling of 13625838 in words is "thirteen million, six hundred twenty-five thousand, eight hundred thirty-eight".