1662973132 has 12 divisors (see below), whose sum is σ = 2911263040. Its totient is φ = 831183696.

The previous prime is 1662973121. The next prime is 1662973139. The reversal of 1662973132 is 2313792661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1662973139) by changing a digit.

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, 63132 + ... + 85507.

Almost surely, 2^1662973132 is an apocalyptic number.

It is an amenable number.

1662973132 is a deficient number, since it is larger than the sum of its proper divisors (1248289908).

1662973132 is a wasteful number, since it uses less digits than its factorization.

1662973132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151440 (or 151438 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 1662973132 is about 40779.5675798555. The cubic root of 1662973132 is about 1184.7546197993.

The spelling of 1662973132 in words is "one billion, six hundred sixty-two million, nine hundred seventy-three thousand, one hundred thirty-two".