20038470 has 16 divisors (see below), whose sum is σ = 48092400. Its totient is φ = 5343584.

The previous prime is 20038453. The next prime is 20038471. The reversal of 20038470 is 7483002.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20038470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 333945 + ... + 334004.

It is an arithmetic number, because the mean of its divisors is an integer number (3005775).

Almost surely, 2^20038470 is an apocalyptic number.

20038470 is an abundant number, since it is smaller than the sum of its proper divisors (28053930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20038470 is a wasteful number, since it uses less digits than its factorization.

20038470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667959.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20038470 is about 4476.4349654608. The cubic root of 20038470 is about 271.6156895998.

The spelling of 20038470 in words is "twenty million, thirty-eight thousand, four hundred seventy".