20078126 has 8 divisors (see below), whose sum is σ = 31426704. Its totient is φ = 9602560.

The previous prime is 20078101. The next prime is 20078131. The reversal of 20078126 is 62187002.

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

It is a super-2 number, since 2×20078126² = 806262287343752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20078095 and 20078104.

It is a congruent number.

It is an unprimeable number.

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, 218195 + ... + 218286.

It is an arithmetic number, because the mean of its divisors is an integer number (3928338).

Almost surely, 2^20078126 is an apocalyptic number.

20078126 is a deficient number, since it is larger than the sum of its proper divisors (11348578).

20078126 is a wasteful number, since it uses less digits than its factorization.

20078126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436506.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 20078126 is about 4480.8621938194. The cubic root of 20078126 is about 271.7947467537.

The spelling of 20078126 in words is "twenty million, seventy-eight thousand, one hundred twenty-six".