20433898 has 16 divisors (see below), whose sum is σ = 33502464. Its totient is φ = 9305280.

The previous prime is 20433887. The next prime is 20433943. The reversal of 20433898 is 89833402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8640 + ... + 10747.

It is an arithmetic number, because the mean of its divisors is an integer number (2093904).

Almost surely, 2^20433898 is an apocalyptic number.

20433898 is a deficient number, since it is larger than the sum of its proper divisors (13068566).

20433898 is a wasteful number, since it uses less digits than its factorization.

20433898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19437.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 20433898 is about 4520.3869303413. The cubic root of 20433898 is about 273.3907021495.

The spelling of 20433898 in words is "twenty million, four hundred thirty-three thousand, eight hundred ninety-eight".