20041398 has 32 divisors (see below), whose sum is σ = 47964000. Its totient is φ = 6166368.

The previous prime is 20041391. The next prime is 20041403. The reversal of 20041398 is 89314002.

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 (20041391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13573 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (1498875).

Almost surely, 2^20041398 is an apocalyptic number.

20041398 is an abundant number, since it is smaller than the sum of its proper divisors (27922602).

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

20041398 is a wasteful number, since it uses less digits than its factorization.

20041398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28573 (or 28567 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20041398 is about 4476.7619994813. The cubic root of 20041398 is about 271.6289183544.

The spelling of 20041398 in words is "twenty million, forty-one thousand, three hundred ninety-eight".