20998414 has 8 divisors (see below), whose sum is σ = 31786920. Its totient is φ = 10402776.

The previous prime is 20998399. The next prime is 20998433. The reversal of 20998414 is 41489902.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47944 + ... + 48379.

It is an arithmetic number, because the mean of its divisors is an integer number (3973365).

Almost surely, 2^20998414 is an apocalyptic number.

20998414 is a deficient number, since it is larger than the sum of its proper divisors (10788506).

20998414 is a wasteful number, since it uses less digits than its factorization.

20998414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96434.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 20998414 is about 4582.4026449015. The cubic root of 20998414 is about 275.8854719811.

It can be divided in two parts, 20998 and 414, that added together give a palindrome (21412).

The spelling of 20998414 in words is "twenty million, nine hundred ninety-eight thousand, four hundred fourteen".