20480078 has 8 divisors (see below), whose sum is σ = 30740472. Its totient is φ = 10233256.

The previous prime is 20480071. The next prime is 20480099. The reversal of 20480078 is 87008402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20480078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (3842559).

Almost surely, 2^20480078 is an apocalyptic number.

20480078 is a deficient number, since it is larger than the sum of its proper divisors (10260394).

20480078 is a wasteful number, since it uses less digits than its factorization.

20480078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 20480078 is about 4525.4920174496. The cubic root of 20480078 is about 273.5964988067.

The spelling of 20480078 in words is "twenty million, four hundred eighty thousand, seventy-eight".