247303742 has 8 divisors (see below), whose sum is σ = 423949296. Its totient is φ = 105987312.

The previous prime is 247303717. The next prime is 247303747.

247303742 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×247303742² = 122318281614405128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247303699 and 247303708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247303747) 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, 8832263 + ... + 8832290.

It is an arithmetic number, because the mean of its divisors is an integer number (52993662).

Almost surely, 2^247303742 is an apocalyptic number.

247303742 is a deficient number, since it is larger than the sum of its proper divisors (176645554).

247303742 is a wasteful number, since it uses less digits than its factorization.

247303742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17664562.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 247303742 is about 15725.8939968448. The cubic root of 247303742 is about 627.6876193309.

The spelling of 247303742 in words is "two hundred forty-seven million, three hundred three thousand, seven hundred forty-two".