273640992 has 96 divisors (see below), whose sum is σ = 741565440. Its totient is φ = 88300800.

The previous prime is 273640987. The next prime is 273641101. The reversal of 273640992 is 299046372.

It is a happy number.

273640992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623109 + ... + 623547.

It is an arithmetic number, because the mean of its divisors is an integer number (7724640).

Almost surely, 2^273640992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273640992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370782720).

273640992 is an abundant number, since it is smaller than the sum of its proper divisors (467924448).

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

273640992 is a wasteful number, since it uses less digits than its factorization.

273640992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 273640992 is about 16542.0975695345. The cubic root of 273640992 is about 649.2227332462. Note that the first 3 decimals are identical.

The spelling of 273640992 in words is "two hundred seventy-three million, six hundred forty thousand, nine hundred ninety-two".