247438046 has 4 divisors (see below), whose sum is σ = 371157072. Its totient is φ = 123719022.

The previous prime is 247438013. The next prime is 247438049. The reversal of 247438046 is 640834742.

247438046 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×247438046² = 122451173216596232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247438049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61859510 + ... + 61859513.

It is an arithmetic number, because the mean of its divisors is an integer number (92789268).

Almost surely, 2^247438046 is an apocalyptic number.

247438046 is a deficient number, since it is larger than the sum of its proper divisors (123719026).

247438046 is a wasteful number, since it uses less digits than its factorization.

247438046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123719025.

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 247438046 is about 15730.1635719404. The cubic root of 247438046 is about 627.8012255134.

The spelling of 247438046 in words is "two hundred forty-seven million, four hundred thirty-eight thousand, forty-six".