247490924 has 24 divisors (see below), whose sum is σ = 446052096. Its totient is φ = 120080000.

The previous prime is 247490923. The next prime is 247490939. The reversal of 247490924 is 429094742.

It is a super-2 number, since 2×247490924² = 122503514924747552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (247490923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27374 + ... + 35274.

It is an arithmetic number, because the mean of its divisors is an integer number (18585504).

Almost surely, 2^247490924 is an apocalyptic number.

It is an amenable number.

247490924 is a deficient number, since it is larger than the sum of its proper divisors (198561172).

247490924 is a wasteful number, since it uses less digits than its factorization.

247490924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137 (or 8135 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 247490924 is about 15731.8442656924. The cubic root of 247490924 is about 627.8459431161.

The spelling of 247490924 in words is "two hundred forty-seven million, four hundred ninety thousand, nine hundred twenty-four".