20424838 has 16 divisors (see below), whose sum is σ = 35076384. Its totient is φ = 8737920.

The previous prime is 20424827. The next prime is 20424841. The reversal of 20424838 is 83842402.

It is a congruent number.

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, 10606 + ... + 12382.

It is an arithmetic number, because the mean of its divisors is an integer number (2192274).

Almost surely, 2^20424838 is an apocalyptic number.

20424838 is a deficient number, since it is larger than the sum of its proper divisors (14651546).

20424838 is a wasteful number, since it uses less digits than its factorization.

20424838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 20424838 is about 4519.3846926324. The cubic root of 20424838 is about 273.3502907716.

The spelling of 20424838 in words is "twenty million, four hundred twenty-four thousand, eight hundred thirty-eight".