275629620 has 96 divisors (see below), whose sum is σ = 900845568. Its totient is φ = 61656192.

The previous prime is 275629609. The next prime is 275629639. The reversal of 275629620 is 26926572.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12759 + ... + 26721.

It is an arithmetic number, because the mean of its divisors is an integer number (9383808).

Almost surely, 2^275629620 is an apocalyptic number.

275629620 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 275629620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450422784).

275629620 is an abundant number, since it is smaller than the sum of its proper divisors (625215948).

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

275629620 is a wasteful number, since it uses less digits than its factorization.

275629620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14029 (or 14027 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 275629620 is about 16602.0968555180. The cubic root of 275629620 is about 650.7916350817.

The spelling of 275629620 in words is "two hundred seventy-five million, six hundred twenty-nine thousand, six hundred twenty".