20026278 has 20 divisors (see below), whose sum is σ = 44874060. Its totient is φ = 6675372.

The previous prime is 20026273. The next prime is 20026283. The reversal of 20026278 is 87262002.

It is an interprime number because it is at equal distance from previous prime (20026273) and next prime (20026283).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026273) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61648 + ... + 61971.

It is an arithmetic number, because the mean of its divisors is an integer number (2243703).

Almost surely, 2^20026278 is an apocalyptic number.

20026278 is an abundant number, since it is smaller than the sum of its proper divisors (24847782).

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

20026278 is a wasteful number, since it uses less digits than its factorization.

20026278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123633 (or 123624 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20026278 is about 4475.0729602991. The cubic root of 20026278 is about 271.5605920745.

The spelling of 20026278 in words is "twenty million, twenty-six thousand, two hundred seventy-eight".