1772676644 has 12 divisors (see below), whose sum is σ = 3113718300. Its totient is φ = 883042848.

The previous prime is 1772676617. The next prime is 1772676713. The reversal of 1772676644 is 4466762771.

It can be written as a sum of positive squares in 2 ways, for example, as 141324544 + 1631352100 = 11888^2 + 40390^2 .

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1772676592 and 1772676601.

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, 822659 + ... + 824810.

It is an arithmetic number, because the mean of its divisors is an integer number (259476525).

Almost surely, 2^1772676644 is an apocalyptic number.

It is an amenable number.

1772676644 is a deficient number, since it is larger than the sum of its proper divisors (1341041656).

1772676644 is a wasteful number, since it uses less digits than its factorization.

1772676644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647742 (or 1647740 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 50.

The square root of 1772676644 is about 42103.1666742539. The cubic root of 1772676644 is about 1210.2539466541.

The spelling of 1772676644 in words is "one billion, seven hundred seventy-two million, six hundred seventy-six thousand, six hundred forty-four".