247044821402 has 8 divisors (see below), whose sum is σ = 375257956800. Its totient is φ = 121958835804.

The previous prime is 247044821383. The next prime is 247044821407. The reversal of 247044821402 is 204128440742.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×247044821402² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247044821407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781787252 + ... + 781787567.

It is an arithmetic number, because the mean of its divisors is an integer number (46907244600).

Almost surely, 2^247044821402 is an apocalyptic number.

247044821402 is a deficient number, since it is larger than the sum of its proper divisors (128213135398).

247044821402 is a wasteful number, since it uses less digits than its factorization.

247044821402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563574900.

The product of its (nonzero) digits is 114688, while the sum is 38.

The spelling of 247044821402 in words is "two hundred forty-seven billion, forty-four million, eight hundred twenty-one thousand, four hundred two".