2278681332 has 24 divisors (see below), whose sum is σ = 5329934400. Its totient is φ = 757701696.

The previous prime is 2278681261. The next prime is 2278681337. The reversal of 2278681332 is 2331868722.

It is a super-2 number, since 2×2278681332² = 10384777225610588448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278681337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227232 + ... + 237047.

It is an arithmetic number, because the mean of its divisors is an integer number (222080600).

Almost surely, 2^2278681332 is an apocalyptic number.

It is an amenable number.

2278681332 is an abundant number, since it is smaller than the sum of its proper divisors (3051253068).

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

2278681332 is a wasteful number, since it uses less digits than its factorization.

2278681332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464695 (or 464693 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 2278681332 is about 47735.5353169942. The cubic root of 2278681332 is about 1315.9150829191.

The spelling of 2278681332 in words is "two billion, two hundred seventy-eight million, six hundred eighty-one thousand, three hundred thirty-two".