20924398 has 8 divisors (see below), whose sum is σ = 34239960. Its totient is φ = 9511080.

The previous prime is 20924389. The next prime is 20924401. The reversal of 20924398 is 89342902.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475533 + ... + 475576.

It is an arithmetic number, because the mean of its divisors is an integer number (4279995).

Almost surely, 2^20924398 is an apocalyptic number.

20924398 is a deficient number, since it is larger than the sum of its proper divisors (13315562).

20924398 is a wasteful number, since it uses less digits than its factorization.

20924398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951122.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 20924398 is about 4574.3194029276. The cubic root of 20924398 is about 275.5609398758.

The spelling of 20924398 in words is "twenty million, nine hundred twenty-four thousand, three hundred ninety-eight".