276394320 has 120 divisors (see below), whose sum is σ = 937487616. Its totient is φ = 72969984.

The previous prime is 276394309. The next prime is 276394343. The reversal of 276394320 is 23493672.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72297 + ... + 76023.

Almost surely, 2^276394320 is an apocalyptic number.

276394320 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 276394320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468743808).

276394320 is an abundant number, since it is smaller than the sum of its proper divisors (661093296).

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

276394320 is a wasteful number, since it uses less digits than its factorization.

276394320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3840 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 276394320 is about 16625.1111274481. Note that the first 4 decimals coincide. The cubic root of 276394320 is about 651.3929260934.

The spelling of 276394320 in words is "two hundred seventy-six million, three hundred ninety-four thousand, three hundred twenty".