650221436 has 24 divisors (see below), whose sum is σ = 1159404624. Its totient is φ = 319020800.

The previous prime is 650221427. The next prime is 650221463. The reversal of 650221436 is 634122056.

It is a junction number, because it is equal to n+sod(n) for n = 650221399 and 650221408.

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, 38531 + ... + 52773.

It is an arithmetic number, because the mean of its divisors is an integer number (48308526).

Almost surely, 2^650221436 is an apocalyptic number.

It is an amenable number.

650221436 is a deficient number, since it is larger than the sum of its proper divisors (509183188).

650221436 is a wasteful number, since it uses less digits than its factorization.

650221436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14461 (or 14459 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 650221436 is about 25499.4399154178. The cubic root of 650221436 is about 866.3374616202.

The spelling of 650221436 in words is "six hundred fifty million, two hundred twenty-one thousand, four hundred thirty-six".