1720511042 has 8 divisors (see below), whose sum is σ = 2581387536. Its totient is φ = 860048532.

The previous prime is 1720511029. The next prime is 1720511071. The reversal of 1720511042 is 2401150271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1720510999 and 1720511017.

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, 92888 + ... + 109859.

It is an arithmetic number, because the mean of its divisors is an integer number (322673442).

Almost surely, 2^1720511042 is an apocalyptic number.

1720511042 is a deficient number, since it is larger than the sum of its proper divisors (860876494).

1720511042 is a wasteful number, since it uses less digits than its factorization.

1720511042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206992.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1720511042 is about 41479.0434074847. The cubic root of 1720511042 is about 1198.2639345158.

The spelling of 1720511042 in words is "one billion, seven hundred twenty million, five hundred eleven thousand, forty-two".