14778057 has 24 divisors (see below), whose sum is σ = 23073600. Its totient is φ = 8388576.

The previous prime is 14778019. The next prime is 14778073. The reversal of 14778057 is 75087741.

It is not a de Polignac number, because 14778057 - 2⁶ = 14777993 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (14778007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33444 + ... + 33882.

It is an arithmetic number, because the mean of its divisors is an integer number (961400).

Almost surely, 2^14778057 is an apocalyptic number.

It is an amenable number.

14778057 is a deficient number, since it is larger than the sum of its proper divisors (8295543).

14778057 is a wasteful number, since it uses less digits than its factorization.

14778057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 39.

The square root of 14778057 is about 3844.2238488413. The cubic root of 14778057 is about 245.3988062610.

It can be divided in two parts, 147780 and 57, that multiplied together give a triangular number (8423460 = T₄₁₀₄).

The spelling of 14778057 in words is "fourteen million, seven hundred seventy-eight thousand, fifty-seven".