276220252 has 108 divisors (see below), whose sum is σ = 651662760. Its totient is φ = 101787840.

The previous prime is 276220237. The next prime is 276220253. The reversal of 276220252 is 252022672.

It is a happy number.

It is a super-2 number, since 2×276220252² = 152595255229887008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 276220252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276220253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 450298 + ... + 450910.

Almost surely, 2^276220252 is an apocalyptic number.

276220252 is a gapful number since it is divisible by the number (22) 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 276220252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325831380).

276220252 is an abundant number, since it is smaller than the sum of its proper divisors (375442508).

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

276220252 is a wasteful number, since it uses less digits than its factorization.

276220252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 276220252 is about 16619.8752101212. The cubic root of 276220252 is about 651.2561523286.

The spelling of 276220252 in words is "two hundred seventy-six million, two hundred twenty thousand, two hundred fifty-two".