20742048 has 48 divisors (see below), whose sum is σ = 60500160. Its totient is φ = 6913728.

The previous prime is 20742041. The next prime is 20742077. The reversal of 20742048 is 84024702.

It is a tau number, because it is divible by the number of its divisors (48).

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 (20742041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11140 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (1260420).

Almost surely, 2^20742048 is an apocalyptic number.

It is an amenable number.

20742048 is an abundant number, since it is smaller than the sum of its proper divisors (39758112).

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

20742048 is a wasteful number, since it uses less digits than its factorization.

20742048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24026 (or 24012 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 20742048 is about 4554.3438605358. The cubic root of 20742048 is about 274.7581256154.

The spelling of 20742048 in words is "twenty million, seven hundred forty-two thousand, forty-eight".