20038078 has 8 divisors (see below), whose sum is σ = 30148920. Its totient is φ = 9988440.

The previous prime is 20038069. The next prime is 20038091. The reversal of 20038078 is 87083002.

It is a happy number.

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

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, 14473 + ... + 15796.

It is an arithmetic number, because the mean of its divisors is an integer number (3768615).

Almost surely, 2^20038078 is an apocalyptic number.

20038078 is a deficient number, since it is larger than the sum of its proper divisors (10110842).

20038078 is a wasteful number, since it uses less digits than its factorization.

20038078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30602.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 20038078 is about 4476.3911804041. The cubic root of 20038078 is about 271.6139184392.

The spelling of 20038078 in words is "twenty million, thirty-eight thousand, seventy-eight".