276297490 has 64 divisors (see below), whose sum is σ = 585667584. Its totient is φ = 91888128.

The previous prime is 276297473. The next prime is 276297491. The reversal of 276297490 is 94792672.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 276297490.

It is not an unprimeable number, because it can be changed into a prime (276297491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450424 + ... + 451036.

It is an arithmetic number, because the mean of its divisors is an integer number (9151056).

Almost surely, 2^276297490 is an apocalyptic number.

276297490 is an abundant number, since it is smaller than the sum of its proper divisors (309370094).

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

276297490 is a wasteful number, since it uses less digits than its factorization.

276297490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 276297490 is about 16622.1987113619. The cubic root of 276297490 is about 651.3168491029.

The spelling of 276297490 in words is "two hundred seventy-six million, two hundred ninety-seven thousand, four hundred ninety".