20492268 has 48 divisors (see below), whose sum is σ = 49106400. Its totient is φ = 6649344.

The previous prime is 20492267. The next prime is 20492273. The reversal of 20492268 is 86229402.

It is not an unprimeable number, because it can be changed into a prime (20492267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130446 + ... + 130602.

It is an arithmetic number, because the mean of its divisors is an integer number (1023050).

Almost surely, 2^20492268 is an apocalyptic number.

It is an amenable number.

20492268 is an abundant number, since it is smaller than the sum of its proper divisors (28614132).

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

20492268 is a wasteful number, since it uses less digits than its factorization.

20492268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 20492268 is about 4526.8386319815. The cubic root of 20492268 is about 273.6507707327.

The spelling of 20492268 in words is "twenty million, four hundred ninety-two thousand, two hundred sixty-eight".