13919808 has 56 divisors (see below), whose sum is σ = 42094912. Its totient is φ = 3976704.

The previous prime is 13919803. The next prime is 13919813. The reversal of 13919808 is 80891931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13919803) and next prime (13919813).

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×13919808² = 387522109513728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13919803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3835 + ... + 6522.

Almost surely, 2^13919808 is an apocalyptic number.

It is an amenable number.

13919808 is an abundant number, since it is smaller than the sum of its proper divisors (28175104).

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

13919808 is a wasteful number, since it uses less digits than its factorization.

13919808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379 (or 10369 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 13919808 is about 3730.9258904460. The cubic root of 13919808 is about 240.5531684842.

The spelling of 13919808 in words is "thirteen million, nine hundred nineteen thousand, eight hundred eight".