20038418 has 8 divisors (see below), whose sum is σ = 30213948. Its totient is φ = 9967104.

The previous prime is 20038411. The next prime is 20038433. The reversal of 20038418 is 81483002.

It can be written as a sum of positive squares in 2 ways, for example, as 19509889 + 528529 = 4417^2 + 727^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20038411) 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, 25571 + ... + 26342.

Almost surely, 2^20038418 is an apocalyptic number.

20038418 is a deficient number, since it is larger than the sum of its proper divisors (10175530).

20038418 is a wasteful number, since it uses less digits than its factorization.

20038418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52108.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20038418 is about 4476.4291572636. The cubic root of 20038418 is about 271.6154546513.

The spelling of 20038418 in words is "twenty million, thirty-eight thousand, four hundred eighteen".