2667340644 has 12 divisors (see below), whose sum is σ = 6223794864. Its totient is φ = 889113544.

The previous prime is 2667340609. The next prime is 2667340679. The reversal of 2667340644 is 4460437662.

It is an interprime number because it is at equal distance from previous prime (2667340609) and next prime (2667340679).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2667340644² = 14229412222268669472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2667340596 and 2667340605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111139182 + ... + 111139205.

It is an arithmetic number, because the mean of its divisors is an integer number (518649572).

Almost surely, 2^2667340644 is an apocalyptic number.

It is an amenable number.

2667340644 is an abundant number, since it is smaller than the sum of its proper divisors (3556454220).

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

2667340644 is a wasteful number, since it uses less digits than its factorization.

2667340644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222278394 (or 222278392 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The square root of 2667340644 is about 51646.3032946212. The cubic root of 2667340644 is about 1386.8393663060.

The spelling of 2667340644 in words is "two billion, six hundred sixty-seven million, three hundred forty thousand, six hundred forty-four".