247673027240 has 16 divisors (see below), whose sum is σ = 557264311380. Its totient is φ = 99069210880.

The previous prime is 247673027179. The next prime is 247673027281. The reversal of 247673027240 is 42720376742.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 227050344004 + 20622683236 = 476498^2 + 143606^2 .

It is a super-2 number, since 2×247673027240² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247673027191 and 247673027200.

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, 3095912801 + ... + 3095912880.

Almost surely, 2^247673027240 is an apocalyptic number.

247673027240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247673027240 is an abundant number, since it is smaller than the sum of its proper divisors (309591284140).

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

247673027240 is a wasteful number, since it uses less digits than its factorization.

247673027240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191825692 (or 6191825688 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 44.

The spelling of 247673027240 in words is "two hundred forty-seven billion, six hundred seventy-three million, twenty-seven thousand, two hundred forty".