20243498 has 32 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 8565760.

The previous prime is 20243471. The next prime is 20243501. The reversal of 20243498 is 89434202.

It is a super-2 number, since 2×20243498² = 819598422552008, which contains 22 as substring.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 42023 + ... + 42501.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 2^20243498 is an apocalyptic number.

20243498 is a deficient number, since it is larger than the sum of its proper divisors (15215062).

20243498 is a wasteful number, since it uses less digits than its factorization.

20243498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20243498 is about 4499.2774975545. The cubic root of 20243498 is about 272.5389131647.

The spelling of 20243498 in words is "twenty million, two hundred forty-three thousand, four hundred ninety-eight".