276637242 has 96 divisors (see below), whose sum is σ = 672399360. Its totient is φ = 75569760.

The previous prime is 276637241. The next prime is 276637279. The reversal of 276637242 is 242736672.

It is a super-2 number, since 2×276637242² = 153056327322733128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 276637242.

It is not an unprimeable number, because it can be changed into a prime (276637241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1157359 + ... + 1157597.

It is an arithmetic number, because the mean of its divisors is an integer number (7004160).

Almost surely, 2^276637242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276637242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336199680).

276637242 is an abundant number, since it is smaller than the sum of its proper divisors (395762118).

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

276637242 is a wasteful number, since it uses less digits than its factorization.

276637242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 409 counting only the distinct ones).

The product of its digits is 169344, while the sum is 39.

The square root of 276637242 is about 16632.4153988529. The cubic root of 276637242 is about 651.5837058663.

The spelling of 276637242 in words is "two hundred seventy-six million, six hundred thirty-seven thousand, two hundred forty-two".