14978916 has 72 divisors (see below), whose sum is σ = 40622400. Its totient is φ = 4639680.

The previous prime is 14978893. The next prime is 14978959. The reversal of 14978916 is 61987941.

It is a happy number.

14978916 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 unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41545 + ... + 41903.

It is an arithmetic number, because the mean of its divisors is an integer number (564200).

Almost surely, 2^14978916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14978916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20311200).

14978916 is an abundant number, since it is smaller than the sum of its proper divisors (25643484).

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

14978916 is a wasteful number, since it uses less digits than its factorization.

14978916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 444 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 14978916 is about 3870.2604563517. The cubic root of 14978916 is about 246.5056029952.

The spelling of 14978916 in words is "fourteen million, nine hundred seventy-eight thousand, nine hundred sixteen".