247095740 has 24 divisors (see below), whose sum is σ = 519689520. Its totient is φ = 98688128.

The previous prime is 247095707. The next prime is 247095743. The reversal of 247095740 is 47590742.

It is a super-2 number, since 2×247095740² = 122112609452295200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247095694 and 247095703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247095743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4616 + ... + 22704.

It is an arithmetic number, because the mean of its divisors is an integer number (21653730).

Almost surely, 2^247095740 is an apocalyptic number.

247095740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247095740 is an abundant number, since it is smaller than the sum of its proper divisors (272593780).

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

247095740 is a wasteful number, since it uses less digits than its factorization.

247095740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18781 (or 18779 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 247095740 is about 15719.2792455634. The cubic root of 247095740 is about 627.5115916654.

The spelling of 247095740 in words is "two hundred forty-seven million, ninety-five thousand, seven hundred forty".