275073720 has 64 divisors (see below), whose sum is σ = 829440000. Its totient is φ = 72978048.

The previous prime is 275073713. The next prime is 275073761. The reversal of 275073720 is 27370572.

It is a congruent number.

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, 18121 + ... + 29639.

It is an arithmetic number, because the mean of its divisors is an integer number (12960000).

Almost surely, 2^275073720 is an apocalyptic number.

275073720 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 275073720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414720000).

275073720 is an abundant number, since it is smaller than the sum of its proper divisors (554366280).

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

275073720 is a wasteful number, since it uses less digits than its factorization.

275073720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732 (or 11728 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 275073720 is about 16585.3465444651. The cubic root of 275073720 is about 650.3538270834.

The spelling of 275073720 in words is "two hundred seventy-five million, seventy-three thousand, seven hundred twenty".