1768420044 has 36 divisors (see below), whose sum is σ = 4664530416. Its totient is φ = 563843808.

The previous prime is 1768420037. The next prime is 1768420061. The reversal of 1768420044 is 4400248671.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1768419990 and 1768420008.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1067059 + ... + 1068714.

Almost surely, 2^1768420044 is an apocalyptic number.

It is an amenable number.

1768420044 is an abundant number, since it is smaller than the sum of its proper divisors (2896110372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1768420044 is a wasteful number, since it uses less digits than its factorization.

1768420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135806 (or 2135801 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1768420044 is about 42052.5866505260. The cubic root of 1768420044 is about 1209.2844718888.

The spelling of 1768420044 in words is "one billion, seven hundred sixty-eight million, four hundred twenty thousand, forty-four".