14625978 has 8 divisors (see below), whose sum is σ = 29251968. Its totient is φ = 4875324.

The previous prime is 14625959. The next prime is 14625979. The reversal of 14625978 is 87952641.

It is a sphenic number, since it is the product of 3 distinct primes.

14625978 is an admirable number.

It is a super-3 number, since 3×14625978³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (14625979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218826 + ... + 1218837.

It is an arithmetic number, because the mean of its divisors is an integer number (3656496).

Almost surely, 2^14625978 is an apocalyptic number.

14625978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14625978 is a wasteful number, since it uses less digits than its factorization.

14625978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437668.

The product of its digits is 120960, while the sum is 42.

The square root of 14625978 is about 3824.3925007771. The cubic root of 14625978 is about 244.5541133399.

Subtracting from 14625978 its sum of digits (42), we obtain a triangular number (14625936 = T₅₄₀₈).

The spelling of 14625978 in words is "fourteen million, six hundred twenty-five thousand, nine hundred seventy-eight".