20678348 has 12 divisors (see below), whose sum is σ = 36273720. Its totient is φ = 10314432.

The previous prime is 20678347. The next prime is 20678351. The reversal of 20678348 is 84387602.

It is not an unprimeable number, because it can be changed into a prime (20678347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4238 + ... + 7701.

It is an arithmetic number, because the mean of its divisors is an integer number (3022810).

Almost surely, 2^20678348 is an apocalyptic number.

It is an amenable number.

20678348 is a deficient number, since it is larger than the sum of its proper divisors (15595372).

20678348 is a wasteful number, since it uses less digits than its factorization.

20678348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12376 (or 12374 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 20678348 is about 4547.3451595409. The cubic root of 20678348 is about 274.4765712920.

The spelling of 20678348 in words is "twenty million, six hundred seventy-eight thousand, three hundred forty-eight".