1446640156 has 12 divisors (see below), whose sum is σ = 2726360392. Its totient is φ = 667680048.

The previous prime is 1446640133. The next prime is 1446640163. The reversal of 1446640156 is 6510466441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13909950 + ... + 13910053.

Almost surely, 2^1446640156 is an apocalyptic number.

It is an amenable number.

1446640156 is a deficient number, since it is larger than the sum of its proper divisors (1279720236).

1446640156 is a wasteful number, since it uses less digits than its factorization.

1446640156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27820020 (or 27820018 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1446640156 is about 38034.7230304100. The cubic root of 1446640156 is about 1130.9763029816.

The spelling of 1446640156 in words is "one billion, four hundred forty-six million, six hundred forty thousand, one hundred fifty-six".