247390422 has 32 divisors (see below), whose sum is σ = 513907200. Its totient is φ = 79335648.

The previous prime is 247390421. The next prime is 247390427. The reversal of 247390422 is 224093742.

It is a super-2 number, since 2×247390422² = 122404041794676168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247390421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9204 + ... + 24072.

It is an arithmetic number, because the mean of its divisors is an integer number (16059600).

Almost surely, 2^247390422 is an apocalyptic number.

247390422 is an abundant number, since it is smaller than the sum of its proper divisors (266516778).

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

247390422 is a wasteful number, since it uses less digits than its factorization.

247390422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14980.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 247390422 is about 15728.6497195405. The cubic root of 247390422 is about 627.7609456340.

The spelling of 247390422 in words is "two hundred forty-seven million, three hundred ninety thousand, four hundred twenty-two".