20243974 has 8 divisors (see below), whose sum is σ = 32152248. Its totient is φ = 9526560.

The previous prime is 20243969. The next prime is 20243989. The reversal of 20243974 is 47934202.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297672 + ... + 297739.

It is an arithmetic number, because the mean of its divisors is an integer number (4019031).

Almost surely, 2^20243974 is an apocalyptic number.

20243974 is a deficient number, since it is larger than the sum of its proper divisors (11908274).

20243974 is a wasteful number, since it uses less digits than its factorization.

20243974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595430.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 20243974 is about 4499.3303946254. The cubic root of 20243974 is about 272.5410492828.

The spelling of 20243974 in words is "twenty million, two hundred forty-three thousand, nine hundred seventy-four".