247942264 has 16 divisors (see below), whose sum is σ = 466164000. Its totient is φ = 123631872.

The previous prime is 247942241. The next prime is 247942301. The reversal of 247942264 is 462249742.

It is a happy number.

It is a super-2 number, since 2×247942264² = 122950732554891392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39289 + ... + 45160.

It is an arithmetic number, because the mean of its divisors is an integer number (29135250).

Almost surely, 2^247942264 is an apocalyptic number.

It is an amenable number.

247942264 is a deficient number, since it is larger than the sum of its proper divisors (218221736).

247942264 is a wasteful number, since it uses less digits than its factorization.

247942264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84822 (or 84818 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 247942264 is about 15746.1825214875. The cubic root of 247942264 is about 628.2273711154.

The spelling of 247942264 in words is "two hundred forty-seven million, nine hundred forty-two thousand, two hundred sixty-four".