247464742 has 16 divisors (see below), whose sum is σ = 434092032. Its totient is φ = 103589640.

The previous prime is 247464727. The next prime is 247464773.

247464742 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×247464742³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 247464695 and 247464704.

It is a congruent number.

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, 204934 + ... + 206137.

It is an arithmetic number, because the mean of its divisors is an integer number (27130752).

Almost surely, 2^247464742 is an apocalyptic number.

247464742 is a deficient number, since it is larger than the sum of its proper divisors (186627290).

247464742 is a wasteful number, since it uses less digits than its factorization.

247464742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411123.

The product of its digits is 301056, while the sum is 40.

The square root of 247464742 is about 15731.0121098421. The cubic root of 247464742 is about 627.8238024494.

The spelling of 247464742 in words is "two hundred forty-seven million, four hundred sixty-four thousand, seven hundred forty-two".