20483378 has 4 divisors (see below), whose sum is σ = 30725070. Its totient is φ = 10241688.

The previous prime is 20483377. The next prime is 20483381. The reversal of 20483378 is 87338402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20403289 + 80089 = 4517^2 + 283^2 .

It is not an unprimeable number, because it can be changed into a prime (20483377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5120843 + ... + 5120846.

Almost surely, 2^20483378 is an apocalyptic number.

20483378 is a deficient number, since it is larger than the sum of its proper divisors (10241692).

20483378 is a wasteful number, since it uses less digits than its factorization.

20483378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10241691.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 20483378 is about 4525.8566040033. The cubic root of 20483378 is about 273.6111930860.

The spelling of 20483378 in words is "twenty million, four hundred eighty-three thousand, three hundred seventy-eight".