74222210 has 8 divisors (see below), whose sum is σ = 133599996. Its totient is φ = 29688880.

The previous prime is 74222191. The next prime is 74222233. The reversal of 74222210 is 1222247.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71791729 + 2430481 = 8473^2 + 1559^2 .

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

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3711101 + ... + 3711120.

Almost surely, 2^74222210 is an apocalyptic number.

74222210 is a deficient number, since it is larger than the sum of its proper divisors (59377786).

74222210 is a wasteful number, since it uses less digits than its factorization.

74222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422228.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 74222210 is about 8615.2312795421. The cubic root of 74222210 is about 420.2534562382.

Adding to 74222210 its reverse (1222247), we get a palindrome (75444457).

The spelling of 74222210 in words is "seventy-four million, two hundred twenty-two thousand, two hundred ten".