247006404440 has 64 divisors (see below), whose sum is σ = 558291096000. Its totient is φ = 98353704960.

The previous prime is 247006404433. The next prime is 247006404443. The reversal of 247006404440 is 44404600742.

247006404440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247006404440² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247006404440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247006404443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47416556 + ... + 47421764.

It is an arithmetic number, because the mean of its divisors is an integer number (8723298375).

Almost surely, 2^247006404440 is an apocalyptic number.

247006404440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247006404440 is an abundant number, since it is smaller than the sum of its proper divisors (311284691560).

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

247006404440 is a wasteful number, since it uses less digits than its factorization.

247006404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380 (or 10376 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 35.

The spelling of 247006404440 in words is "two hundred forty-seven billion, six million, four hundred four thousand, four hundred forty".