20071254 has 32 divisors (see below), whose sum is σ = 48577536. Its totient is φ = 5397120.

The previous prime is 20071217. The next prime is 20071267. The reversal of 20071254 is 45217002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20071254.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13342 + ... + 14769.

It is an arithmetic number, because the mean of its divisors is an integer number (1518048).

Almost surely, 2^20071254 is an apocalyptic number.

20071254 is an abundant number, since it is smaller than the sum of its proper divisors (28506282).

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

20071254 is a wasteful number, since it uses less digits than its factorization.

20071254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28140.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20071254 is about 4480.0953114861. The cubic root of 20071254 is about 271.7637347852.

Adding to 20071254 its reverse (45217002), we get a palindrome (65288256).

The spelling of 20071254 in words is "twenty million, seventy-one thousand, two hundred fifty-four".