273533540 has 24 divisors (see below), whose sum is σ = 656480832. Its totient is φ = 93782880.

The previous prime is 273533537. The next prime is 273533543. The reversal of 273533540 is 45335372.

273533540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (273533537) and next prime (273533543).

It is a junction number, because it is equal to n+sod(n) for n = 273533497 and 273533506.

It is not an unprimeable number, because it can be changed into a prime (273533543) 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, 976766 + ... + 977045.

It is an arithmetic number, because the mean of its divisors is an integer number (27353368).

Almost surely, 2^273533540 is an apocalyptic number.

273533540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273533540 is an abundant number, since it is smaller than the sum of its proper divisors (382947292).

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

273533540 is a wasteful number, since it uses less digits than its factorization.

273533540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953827 (or 1953825 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 32.

The square root of 273533540 is about 16538.8494158451. The cubic root of 273533540 is about 649.1377442567.

The spelling of 273533540 in words is "two hundred seventy-three million, five hundred thirty-three thousand, five hundred forty".