1949700221 has 8 divisors (see below), whose sum is σ = 2228507904. Its totient is φ = 1670962320.

The previous prime is 1949700217. The next prime is 1949700283. The reversal of 1949700221 is 1220079491.

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

It is a cyclic number.

It is not a de Polignac number, because 1949700221 - 2² = 1949700217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949700721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75356 + ... + 97866.

It is an arithmetic number, because the mean of its divisors is an integer number (278563488).

Almost surely, 2^1949700221 is an apocalyptic number.

It is an amenable number.

1949700221 is a deficient number, since it is larger than the sum of its proper divisors (278807683).

1949700221 is a wasteful number, since it uses less digits than its factorization.

1949700221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34891.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1949700221 is about 44155.4098724041. The cubic root of 1949700221 is about 1249.2689530196.

The spelling of 1949700221 in words is "one billion, nine hundred forty-nine million, seven hundred thousand, two hundred twenty-one".