20014992 has 80 divisors (see below), whose sum is σ = 58121280. Its totient is φ = 6594048.

The previous prime is 20014987. The next prime is 20014993. The reversal of 20014992 is 29941002.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20014993) 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 15 ways as a sum of consecutive naturals, for example, 46008 + ... + 46440.

It is an arithmetic number, because the mean of its divisors is an integer number (726516).

Almost surely, 2^20014992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20014992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29060640).

20014992 is an abundant number, since it is smaller than the sum of its proper divisors (38106288).

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

20014992 is a wasteful number, since it uses less digits than its factorization.

20014992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 20014992 is about 4473.8117975614. The cubic root of 20014992 is about 271.5095689677.

Adding to 20014992 its reverse (29941002), we get a palindrome (49955994).

The spelling of 20014992 in words is "twenty million, fourteen thousand, nine hundred ninety-two".