20438248 has 32 divisors (see below), whose sum is σ = 39427200. Its totient is φ = 9929088.

The previous prime is 20438221. The next prime is 20438251. The reversal of 20438248 is 84283402.

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, 45915 + ... + 46357.

It is an arithmetic number, because the mean of its divisors is an integer number (1232100).

Almost surely, 2^20438248 is an apocalyptic number.

It is an amenable number.

20438248 is a deficient number, since it is larger than the sum of its proper divisors (18988952).

20438248 is a wasteful number, since it uses less digits than its factorization.

20438248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 597 counting only the distinct ones).

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

The square root of 20438248 is about 4520.8680582384. The cubic root of 20438248 is about 273.4101007191.

The spelling of 20438248 in words is "twenty million, four hundred thirty-eight thousand, two hundred forty-eight".