247474402 has 12 divisors (see below), whose sum is σ = 431817750. Its totient is φ = 106060416.

The previous prime is 247474399. The next prime is 247474421. The reversal of 247474402 is 204474742.

It can be written as a sum of positive squares in only one way, i.e., 181198521 + 66275881 = 13461^2 + 8141^2 .

It is a super-2 number, since 2×247474402² = 122487159290515208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262527 + ... + 1262722.

Almost surely, 2^247474402 is an apocalyptic number.

247474402 is a deficient number, since it is larger than the sum of its proper divisors (184343348).

247474402 is a wasteful number, since it uses less digits than its factorization.

247474402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525265 (or 2525258 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 34.

The square root of 247474402 is about 15731.3191436701. The cubic root of 247474402 is about 627.8319715579.

The spelling of 247474402 in words is "two hundred forty-seven million, four hundred seventy-four thousand, four hundred two".