20031954 has 16 divisors (see below), whose sum is σ = 40186848. Its totient is φ = 6656832.

The previous prime is 20031943. The next prime is 20031959. The reversal of 20031954 is 45913002.

It is not an unprimeable number, because it can be changed into a prime (20031959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (2511678).

Almost surely, 2^20031954 is an apocalyptic number.

20031954 is an abundant number, since it is smaller than the sum of its proper divisors (20154894).

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

20031954 is a wasteful number, since it uses less digits than its factorization.

20031954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 20031954 is about 4475.7070949739. The cubic root of 20031954 is about 271.5862455737.

Adding to 20031954 its reverse (45913002), we get a palindrome (65944956).

The spelling of 20031954 in words is "twenty million, thirty-one thousand, nine hundred fifty-four".