247490235 has 60 divisors (see below), whose sum is σ = 465795792. Its totient is φ = 125481312.

The previous prime is 247490179. The next prime is 247490239. The reversal of 247490235 is 532094742.

It is not a de Polignac number, because 247490235 - 2¹⁰ = 247489211 is a prime.

It is a super-2 number, since 2×247490235² = 122502832840710450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247490235.

It is not an unprimeable number, because it can be changed into a prime (247490239) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1518264 + ... + 1518426.

Almost surely, 2^247490235 is an apocalyptic number.

247490235 is a deficient number, since it is larger than the sum of its proper divisors (218305557).

247490235 is an equidigital number, since it uses as much as digits as its factorization.

247490235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 247490235 is about 15731.8223674182. The cubic root of 247490235 is about 627.8453604870.

The spelling of 247490235 in words is "two hundred forty-seven million, four hundred ninety thousand, two hundred thirty-five".