20273743 has 8 divisors (see below), whose sum is σ = 23796512. Its totient is φ = 16907616.

The previous prime is 20273717. The next prime is 20273761. The reversal of 20273743 is 34737202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20273743 - 2⁵ = 20273711 is a prime.

It is a super-2 number, since 2×20273743² = 822049310460098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273243) 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, 38880 + ... + 39397.

It is an arithmetic number, because the mean of its divisors is an integer number (2974564).

Almost surely, 2^20273743 is an apocalyptic number.

20273743 is a deficient number, since it is larger than the sum of its proper divisors (3522769).

20273743 is an equidigital number, since it uses as much as digits as its factorization.

20273743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78321.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 20273743 is about 4502.6373382719. The cubic root of 20273743 is about 272.6745754513.

The spelling of 20273743 in words is "twenty million, two hundred seventy-three thousand, seven hundred forty-three".