273278432 has 48 divisors (see below), whose sum is σ = 623572992. Its totient is φ = 115463040.

The previous prime is 273278431. The next prime is 273278449. The reversal of 273278432 is 234872372.

It is a happy number.

It is a super-2 number, since 2×273278432² = 149362202792757248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273278431) 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, 7313 + ... + 24495.

It is an arithmetic number, because the mean of its divisors is an integer number (12991104).

Almost surely, 2^273278432 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 273278432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311786496).

273278432 is an abundant number, since it is smaller than the sum of its proper divisors (350294560).

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

273278432 is a wasteful number, since it uses less digits than its factorization.

273278432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17271 (or 17263 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 273278432 is about 16531.1352302254. The cubic root of 273278432 is about 648.9358777993.

The spelling of 273278432 in words is "two hundred seventy-three million, two hundred seventy-eight thousand, four hundred thirty-two".