1418680444 has 12 divisors (see below), whose sum is σ = 2494458568. Its totient is φ = 705978000.

The previous prime is 1418680423. The next prime is 1418680451. The reversal of 1418680444 is 4440868141.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1418680397 and 1418680406.

It is a congruent number.

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, 839607 + ... + 841294.

Almost surely, 2^1418680444 is an apocalyptic number.

It is an amenable number.

1418680444 is a deficient number, since it is larger than the sum of its proper divisors (1075778124).

1418680444 is a wasteful number, since it uses less digits than its factorization.

1418680444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681116 (or 1681114 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 1418680444 is about 37665.3746032082. The cubic root of 1418680444 is about 1123.6425950026.

The spelling of 1418680444 in words is "one billion, four hundred eighteen million, six hundred eighty thousand, four hundred forty-four".