275029020 has 240 divisors, whose sum is σ = 1001763840. Its totient is φ = 61865856.

The previous prime is 275029003. The next prime is 275029021. The reversal of 275029020 is 20920572.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275029021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 895707 + ... + 896013.

It is an arithmetic number, because the mean of its divisors is an integer number (4174016).

Almost surely, 2^275029020 is an apocalyptic number.

275029020 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 275029020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500881920).

275029020 is an abundant number, since it is smaller than the sum of its proper divisors (726734820).

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

275029020 is a wasteful number, since it uses less digits than its factorization.

275029020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 275029020 is about 16583.9989146165. The cubic root of 275029020 is about 650.3185972658.

Adding to 275029020 its reverse (20920572), we get a palindrome (295949592).

The spelling of 275029020 in words is "two hundred seventy-five million, twenty-nine thousand, twenty".