273408645 has 16 divisors (see below), whose sum is σ = 439875072. Its totient is φ = 145010880.

The previous prime is 273408643. The next prime is 273408683. The reversal of 273408645 is 546804372.

It is a happy number.

It is not a de Polignac number, because 273408645 - 2¹ = 273408643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273408643) 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, 47637 + ... + 53066.

It is an arithmetic number, because the mean of its divisors is an integer number (27492192).

Almost surely, 2^273408645 is an apocalyptic number.

It is an amenable number.

273408645 is a deficient number, since it is larger than the sum of its proper divisors (166466427).

273408645 is a wasteful number, since it uses less digits than its factorization.

273408645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100892.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 273408645 is about 16535.0731779451. The cubic root of 273408645 is about 649.0389307789.

The spelling of 273408645 in words is "two hundred seventy-three million, four hundred eight thousand, six hundred forty-five".