1722871042 has 16 divisors (see below), whose sum is σ = 2605832064. Its totient is φ = 854280000.

The previous prime is 1722870979. The next prime is 1722871079. The reversal of 1722871042 is 2401782271.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1722870989 and 1722871007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186042 + ... + 195082.

It is an arithmetic number, because the mean of its divisors is an integer number (162864504).

Almost surely, 2^1722871042 is an apocalyptic number.

1722871042 is a deficient number, since it is larger than the sum of its proper divisors (882961022).

1722871042 is a wasteful number, since it uses less digits than its factorization.

1722871042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 1722871042 is about 41507.4817593166. The cubic root of 1722871042 is about 1198.8115646100.

The spelling of 1722871042 in words is "one billion, seven hundred twenty-two million, eight hundred seventy-one thousand, forty-two".