1772143742 has 12 divisors (see below), whose sum is σ = 2715983520. Its totient is φ = 867217116.

The previous prime is 1772143729. The next prime is 1772143753. The reversal of 1772143742 is 2473412771.

It is a junction number, because it is equal to n+sod(n) for n = 1772143696 and 1772143705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196142 + ... + 204977.

It is an arithmetic number, because the mean of its divisors is an integer number (226331960).

Almost surely, 2^1772143742 is an apocalyptic number.

1772143742 is a deficient number, since it is larger than the sum of its proper divisors (943839778).

1772143742 is an equidigital number, since it uses as much as digits as its factorization.

1772143742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401215 (or 401168 counting only the distinct ones).

The product of its digits is 65856, while the sum is 38.

The square root of 1772143742 is about 42096.8376722053. The cubic root of 1772143742 is about 1210.1326589977.

The spelling of 1772143742 in words is "one billion, seven hundred seventy-two million, one hundred forty-three thousand, seven hundred forty-two".