275742720 has 384 divisors, whose sum is σ = 1104133680. Its totient is φ = 62914560.

The previous prime is 275742707. The next prime is 275742743. The reversal of 275742720 is 27247572.

275742720 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 (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16220152 + ... + 16220168.

Almost surely, 2^275742720 is an apocalyptic number.

275742720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275742720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552066840).

275742720 is an abundant number, since it is smaller than the sum of its proper divisors (828390960).

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

275742720 is a wasteful number, since it uses less digits than its factorization.

275742720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 275742720 is about 16605.5027024177. The cubic root of 275742720 is about 650.8806367266.

The spelling of 275742720 in words is "two hundred seventy-five million, seven hundred forty-two thousand, seven hundred twenty".