20424892 has 12 divisors (see below), whose sum is σ = 35775936. Its totient is φ = 10203200.

The previous prime is 20424869. The next prime is 20424893. The reversal of 20424892 is 29842402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5892 + ... + 8692.

It is an arithmetic number, because the mean of its divisors is an integer number (2981328).

Almost surely, 2^20424892 is an apocalyptic number.

It is an amenable number.

20424892 is a deficient number, since it is larger than the sum of its proper divisors (15351044).

20424892 is a wasteful number, since it uses less digits than its factorization.

20424892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628 (or 4626 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 20424892 is about 4519.3906668930. The cubic root of 20424892 is about 273.3505316695.

It can be divided in two parts, 20424 and 892, that added together give a square (21316 = 146²).

The spelling of 20424892 in words is "twenty million, four hundred twenty-four thousand, eight hundred ninety-two".