247383742 has 8 divisors (see below), whose sum is σ = 371462256. Its totient is φ = 123562992.

The previous prime is 247383737. The next prime is 247383749.

247383742 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 2×247383742² = 122397431611845128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247383695 and 247383704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247383749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62023 + ... + 65890.

It is an arithmetic number, because the mean of its divisors is an integer number (46432782).

Almost surely, 2^247383742 is an apocalyptic number.

247383742 is a deficient number, since it is larger than the sum of its proper divisors (124078514).

247383742 is a wasteful number, since it uses less digits than its factorization.

247383742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128882.

The product of its digits is 225792, while the sum is 40.

The square root of 247383742 is about 15728.4373667571. The cubic root of 247383742 is about 627.7552953467.

The spelling of 247383742 in words is "two hundred forty-seven million, three hundred eighty-three thousand, seven hundred forty-two".