2972644 has 6 divisors (see below), whose sum is σ = 5202134. Its totient is φ = 1486320.

The previous prime is 2972639. The next prime is 2972663. The reversal of 2972644 is 4462792.

It can be written as a sum of positive squares in only one way, i.e., 1532644 + 1440000 = 1238^2 + 1200^2 .

It is a super-2 number, since 2×2972644² = 17673224701472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371577 + ... + 371584.

2^2972644 is an apocalyptic number.

It is an amenable number.

2972644 is a deficient number, since it is larger than the sum of its proper divisors (2229490).

2972644 is a wasteful number, since it uses less digits than its factorization.

2972644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743165 (or 743163 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 2972644 is about 1724.1357255158. The cubic root of 2972644 is about 143.7852379901.

The spelling of 2972644 in words is "two million, nine hundred seventy-two thousand, six hundred forty-four".