247246830 has 40 divisors (see below), whose sum is σ = 664821432. Its totient is φ = 65932272.

The previous prime is 247246819. The next prime is 247246843. The reversal of 247246830 is 38642742.

It is a super-3 number, since 3×247246830³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 151812 + ... + 153431.

Almost surely, 2^247246830 is an apocalyptic number.

247246830 is an abundant number, since it is smaller than the sum of its proper divisors (417574602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247246830 is a wasteful number, since it uses less digits than its factorization.

247246830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305262 (or 305253 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 247246830 is about 15724.0843930577. The cubic root of 247246830 is about 627.6394657282.

The spelling of 247246830 in words is "two hundred forty-seven million, two hundred forty-six thousand, eight hundred thirty".