2721660376 has 32 divisors (see below), whose sum is σ = 5271321600. Its totient is φ = 1316034720.

The previous prime is 2721660371. The next prime is 2721660379. The reversal of 2721660376 is 6730661272.

2721660376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2721660376² = 14814870404576922752, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721660371) 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, 494005 + ... + 499483.

It is an arithmetic number, because the mean of its divisors is an integer number (164728800).

Almost surely, 2^2721660376 is an apocalyptic number.

It is an amenable number.

2721660376 is a deficient number, since it is larger than the sum of its proper divisors (2549661224).

2721660376 is a wasteful number, since it uses less digits than its factorization.

2721660376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519 (or 7515 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 2721660376 is about 52169.5349413813. The cubic root of 2721660376 is about 1396.1903870845.

The spelling of 2721660376 in words is "two billion, seven hundred twenty-one million, six hundred sixty thousand, three hundred seventy-six".