650221442 has 8 divisors (see below), whose sum is σ = 1050357756. Its totient is φ = 300102192.

The previous prime is 650221427. The next prime is 650221463. The reversal of 650221442 is 244122056.

It can be written as a sum of positive squares in 2 ways, for example, as 647753401 + 2468041 = 25451^2 + 1571^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 25008517 = 650221442 / (6 + 5 + 0 + 2 + 2 + 1 + 4 + 4 + 2).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12504233 + ... + 12504284.

Almost surely, 2^650221442 is an apocalyptic number.

650221442 is a deficient number, since it is larger than the sum of its proper divisors (400136314).

650221442 is a wasteful number, since it uses less digits than its factorization.

650221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25008532.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 650221442 is about 25499.4400330674. The cubic root of 650221442 is about 866.3374642849.

Adding to 650221442 its reverse (244122056), we get a palindrome (894343498).

The spelling of 650221442 in words is "six hundred fifty million, two hundred twenty-one thousand, four hundred forty-two".