20273792 has 128 divisors (see below), whose sum is σ = 53758080. Its totient is φ = 7434240.

The previous prime is 20273791. The next prime is 20273819. The reversal of 20273792 is 29737202.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×20273792² = 822053284118528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (20273791) 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, 1192568 + ... + 1192584.

It is an arithmetic number, because the mean of its divisors is an integer number (419985).

Almost surely, 2^20273792 is an apocalyptic number.

20273792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20273792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26879040).

20273792 is an abundant number, since it is smaller than the sum of its proper divisors (33484288).

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

20273792 is an equidigital number, since it uses as much as digits as its factorization.

20273792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 20273792 is about 4502.6427795240. The cubic root of 20273792 is about 272.6747951286.

The spelling of 20273792 in words is "twenty million, two hundred seventy-three thousand, seven hundred ninety-two".