20410398 has 12 divisors (see below), whose sum is σ = 44222568. Its totient is φ = 6803460.

The previous prime is 20410363. The next prime is 20410409. The reversal of 20410398 is 89301402.

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

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 5 ways as a sum of consecutive naturals, for example, 566938 + ... + 566973.

It is an arithmetic number, because the mean of its divisors is an integer number (3685214).

Almost surely, 2^20410398 is an apocalyptic number.

20410398 is an abundant number, since it is smaller than the sum of its proper divisors (23812170).

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

20410398 is a wasteful number, since it uses less digits than its factorization.

20410398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133919 (or 1133916 counting only the distinct ones).

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

The square root of 20410398 is about 4517.7868475615. The cubic root of 20410398 is about 273.2858576411.

The spelling of 20410398 in words is "twenty million, four hundred ten thousand, three hundred ninety-eight".