20483478 has 24 divisors (see below), whose sum is σ = 46311408. Its totient is φ = 6530832.

The previous prime is 20483473. The next prime is 20483497. The reversal of 20483478 is 87438402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20483471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24325 + ... + 25152.

It is an arithmetic number, because the mean of its divisors is an integer number (1929642).

Almost surely, 2^20483478 is an apocalyptic number.

20483478 is an abundant number, since it is smaller than the sum of its proper divisors (25827930).

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

20483478 is a wasteful number, since it uses less digits than its factorization.

20483478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49508 (or 49505 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 20483478 is about 4525.8676516222. The cubic root of 20483478 is about 273.6116383425.

The spelling of 20483478 in words is "twenty million, four hundred eighty-three thousand, four hundred seventy-eight".