2077200644 has 6 divisors (see below), whose sum is σ = 3635101134. Its totient is φ = 1038600320.

The previous prime is 2077200611. The next prime is 2077200649. The reversal of 2077200644 is 4460027702.

It can be written as a sum of positive squares in only one way, i.e., 1926156544 + 151044100 = 43888^2 + 12290^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2077200644.

It is not an unprimeable number, because it can be changed into a prime (2077200649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259650077 + ... + 259650084.

It is an arithmetic number, because the mean of its divisors is an integer number (605850189).

Almost surely, 2^2077200644 is an apocalyptic number.

It is an amenable number.

2077200644 is a deficient number, since it is larger than the sum of its proper divisors (1557900490).

2077200644 is a wasteful number, since it uses less digits than its factorization.

2077200644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519300165 (or 519300163 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 2077200644 is about 45576.3167006725. The cubic root of 2077200644 is about 1275.9279455714.

The spelling of 2077200644 in words is "two billion, seventy-seven million, two hundred thousand, six hundred forty-four".