273742645 has 8 divisors (see below), whose sum is σ = 358354080. Its totient is φ = 199085520.

The previous prime is 273742643. The next prime is 273742657. The reversal of 273742645 is 546247372.

It is a happy number.

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

It is not a de Polignac number, because 273742645 - 2¹ = 273742643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 273742598 and 273742607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273742643) 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, 2488515 + ... + 2488624.

It is an arithmetic number, because the mean of its divisors is an integer number (44794260).

Almost surely, 2^273742645 is an apocalyptic number.

It is an amenable number.

273742645 is a deficient number, since it is larger than the sum of its proper divisors (84611435).

273742645 is a wasteful number, since it uses less digits than its factorization.

273742645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977155.

The product of its digits is 282240, while the sum is 40.

The square root of 273742645 is about 16545.1698389590. The cubic root of 273742645 is about 649.3031150482.

The spelling of 273742645 in words is "two hundred seventy-three million, seven hundred forty-two thousand, six hundred forty-five".