276403072 has 64 divisors (see below), whose sum is σ = 606553200. Its totient is φ = 124416000.

The previous prime is 276403069. The next prime is 276403079. The reversal of 276403072 is 270304672.

It is a happy number.

276403072 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 (64).

It is a super-2 number, since 2×276403072² = 152797316422074368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276403079) 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 7 ways as a sum of consecutive naturals, for example, 152572 + ... + 154372.

Almost surely, 2^276403072 is an apocalyptic number.

276403072 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 276403072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303276600).

276403072 is an abundant number, since it is smaller than the sum of its proper divisors (330150128).

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

276403072 is a wasteful number, since it uses less digits than its factorization.

276403072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935 (or 1923 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 276403072 is about 16625.3743416502. The cubic root of 276403072 is about 651.3998014526.

The spelling of 276403072 in words is "two hundred seventy-six million, four hundred three thousand, seventy-two".