276465020 has 48 divisors (see below), whose sum is σ = 630086688. Its totient is φ = 101287680.

The previous prime is 276465001. The next prime is 276465031. The reversal of 276465020 is 20564672.

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, 30002 + ... + 38118.

It is an arithmetic number, because the mean of its divisors is an integer number (13126806).

Almost surely, 2^276465020 is an apocalyptic number.

276465020 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 276465020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315043344).

276465020 is an abundant number, since it is smaller than the sum of its proper divisors (353621668).

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

276465020 is a wasteful number, since it uses less digits than its factorization.

276465020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270 (or 8268 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 276465020 is about 16627.2372930683. The cubic root of 276465020 is about 651.4484621523.

The spelling of 276465020 in words is "two hundred seventy-six million, four hundred sixty-five thousand, twenty".