2278639676 has 48 divisors (see below), whose sum is σ = 4478664960. Its totient is φ = 1008034560.

The previous prime is 2278639673. The next prime is 2278639691. The reversal of 2278639676 is 6769368722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278639673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162521 + ... + 175983.

It is an arithmetic number, because the mean of its divisors is an integer number (93305520).

Almost surely, 2^2278639676 is an apocalyptic number.

It is an amenable number.

2278639676 is a deficient number, since it is larger than the sum of its proper divisors (2200025284).

2278639676 is a wasteful number, since it uses less digits than its factorization.

2278639676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634 (or 13632 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 56.

The square root of 2278639676 is about 47735.0989943459. The cubic root of 2278639676 is about 1315.9070642328.

The spelling of 2278639676 in words is "two billion, two hundred seventy-eight million, six hundred thirty-nine thousand, six hundred seventy-six".