20419958 has 16 divisors (see below), whose sum is σ = 34927200. Its totient is φ = 8870016.

The previous prime is 20419957. The next prime is 20419981. The reversal of 20419958 is 85991402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22658 + ... + 23541.

It is an arithmetic number, because the mean of its divisors is an integer number (2182950).

Almost surely, 2^20419958 is an apocalyptic number.

20419958 is a deficient number, since it is larger than the sum of its proper divisors (14507242).

20419958 is a wasteful number, since it uses less digits than its factorization.

20419958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46231.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 20419958 is about 4518.8447638749. The cubic root of 20419958 is about 273.3285189845.

The spelling of 20419958 in words is "twenty million, four hundred nineteen thousand, nine hundred fifty-eight".