516742742 has 8 divisors (see below), whose sum is σ = 776392896. Its totient is φ = 257945112.

The previous prime is 516742741. The next prime is 516742783. The reversal of 516742742 is 247247615.

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

It is a super-2 number, since 2×516742742² = 534046122819357128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 516742696 and 516742705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516742741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211613 + ... + 214040.

It is an arithmetic number, because the mean of its divisors is an integer number (97049112).

Almost surely, 2^516742742 is an apocalyptic number.

516742742 is a deficient number, since it is larger than the sum of its proper divisors (259650154).

516742742 is a wasteful number, since it uses less digits than its factorization.

516742742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426262.

The product of its digits is 94080, while the sum is 38.

The square root of 516742742 is about 22731.9762009377. The cubic root of 516742742 is about 802.4625899105.

The spelling of 516742742 in words is "five hundred sixteen million, seven hundred forty-two thousand, seven hundred forty-two".