247994222 has 16 divisors (see below), whose sum is σ = 426674400. Its totient is φ = 105897888.

The previous prime is 247994191. The next prime is 247994237. The reversal of 247994222 is 222499742.

It is a super-2 number, since 2×247994222² = 123002268290770568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247994222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28097 + ... + 35852.

It is an arithmetic number, because the mean of its divisors is an integer number (26667150).

Almost surely, 2^247994222 is an apocalyptic number.

247994222 is a deficient number, since it is larger than the sum of its proper divisors (178680178).

247994222 is a wasteful number, since it uses less digits than its factorization.

247994222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64235.

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

The square root of 247994222 is about 15747.8322952716. The cubic root of 247994222 is about 628.2712511669.

The spelling of 247994222 in words is "two hundred forty-seven million, nine hundred ninety-four thousand, two hundred twenty-two".