20249892 has 48 divisors (see below), whose sum is σ = 56542080. Its totient is φ = 6230304.

The previous prime is 20249891. The next prime is 20249893. The reversal of 20249892 is 29894202.

It is an interprime number because it is at equal distance from previous prime (20249891) and next prime (20249893).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20249891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5808 + ... + 8615.

It is an arithmetic number, because the mean of its divisors is an integer number (1177960).

Almost surely, 2^20249892 is an apocalyptic number.

It is an amenable number.

20249892 is an abundant number, since it is smaller than the sum of its proper divisors (36292188).

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

20249892 is a wasteful number, since it uses less digits than its factorization.

20249892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14449 (or 14441 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20249892 is about 4499.9879999840. The cubic root of 20249892 is about 272.5676043585.

The spelling of 20249892 in words is "twenty million, two hundred forty-nine thousand, eight hundred ninety-two".