1492366221 has 16 divisors (see below), whose sum is σ = 2212398720. Its totient is φ = 994242240.

The previous prime is 1492366219. The next prime is 1492366283. The reversal of 1492366221 is 1226632941.

It is a happy number.

1492366221 is a `hidden beast` number, since 1 + 4 + 9 + 23 + 6 + 622 + 1 = 666.

It is not a de Polignac number, because 1492366221 - 2¹ = 1492366219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492366021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24136 + ... + 59726.

It is an arithmetic number, because the mean of its divisors is an integer number (138274920).

Almost surely, 2^1492366221 is an apocalyptic number.

It is an amenable number.

1492366221 is a deficient number, since it is larger than the sum of its proper divisors (720032499).

1492366221 is a wasteful number, since it uses less digits than its factorization.

1492366221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37153 (or 37147 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 1492366221 is about 38631.1560919422. The cubic root of 1492366221 is about 1142.7690510992.

The spelling of 1492366221 in words is "one billion, four hundred ninety-two million, three hundred sixty-six thousand, two hundred twenty-one".