20448078 has 32 divisors (see below), whose sum is σ = 47001600. Its totient is φ = 5809440.

The previous prime is 20448061. The next prime is 20448079. The reversal of 20448078 is 87084402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20448079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6748 + ... + 9296.

It is an arithmetic number, because the mean of its divisors is an integer number (1468800).

Almost surely, 2^20448078 is an apocalyptic number.

20448078 is an abundant number, since it is smaller than the sum of its proper divisors (26553522).

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

20448078 is a wasteful number, since it uses less digits than its factorization.

20448078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 20448078 is about 4521.9551081363. The cubic root of 20448078 is about 273.4539268912.

The spelling of 20448078 in words is "twenty million, four hundred forty-eight thousand, seventy-eight".