1418666644 has 12 divisors (see below), whose sum is σ = 2483326944. Its totient is φ = 709144664.

The previous prime is 1418666633. The next prime is 1418666651. The reversal of 1418666644 is 4466668141.

1418666644 = T₃₀₇₅₂ + T₃₀₇₅₃ + T₃₀₇₅₄.

It is a junction number, because it is equal to n+sod(n) for n = 1418666594 and 1418666603.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 29512 + ... + 60895.

It is an arithmetic number, because the mean of its divisors is an integer number (206943912).

Almost surely, 2^1418666644 is an apocalyptic number.

1418666644 is the 30754-th centered triangular number.

It is an amenable number.

1418666644 is a deficient number, since it is larger than the sum of its proper divisors (1064660300).

1418666644 is a wasteful number, since it uses less digits than its factorization.

1418666644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94334 (or 94332 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 1418666644 is about 37665.1914106380. The cubic root of 1418666644 is about 1123.6389516362.

The spelling of 1418666644 in words is "one billion, four hundred eighteen million, six hundred sixty-six thousand, six hundred forty-four".