247042299 has 32 divisors (see below), whose sum is σ = 383975424. Its totient is φ = 138368160.

The previous prime is 247042291. The next prime is 247042309. The reversal of 247042299 is 992240742.

It is not a de Polignac number, because 247042299 - 2³ = 247042291 is a prime.

It is a super-2 number, since 2×247042299² = 122059794990410802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (247042291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332122 + ... + 332864.

It is an arithmetic number, because the mean of its divisors is an integer number (11999232).

Almost surely, 2^247042299 is an apocalyptic number.

247042299 is a deficient number, since it is larger than the sum of its proper divisors (136933125).

247042299 is a wasteful number, since it uses less digits than its factorization.

247042299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 247042299 is about 15717.5792983525. The cubic root of 247042299 is about 627.4663497349.

The spelling of 247042299 in words is "two hundred forty-seven million, forty-two thousand, two hundred ninety-nine".