2921332646 has 4 divisors (see below), whose sum is σ = 4381998972. Its totient is φ = 1460666322.

The previous prime is 2921332633. The next prime is 2921332699. The reversal of 2921332646 is 6462331292.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×2921332646⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730333160 + ... + 730333163.

It is an arithmetic number, because the mean of its divisors is an integer number (1095499743).

Almost surely, 2^2921332646 is an apocalyptic number.

2921332646 is a deficient number, since it is larger than the sum of its proper divisors (1460666326).

2921332646 is a wasteful number, since it uses less digits than its factorization.

2921332646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460666325.

The product of its digits is 93312, while the sum is 38.

The square root of 2921332646 is about 54049.3537981723. The cubic root of 2921332646 is about 1429.5313061277.

The spelling of 2921332646 in words is "two billion, nine hundred twenty-one million, three hundred thirty-two thousand, six hundred forty-six".