1662406448 has 20 divisors (see below), whose sum is σ = 3307965360. Its totient is φ = 808737984.

The previous prime is 1662406439. The next prime is 1662406451. The reversal of 1662406448 is 8446042661.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403468 + ... + 1404651.

It is an arithmetic number, because the mean of its divisors is an integer number (165398268).

Almost surely, 2^1662406448 is an apocalyptic number.

It is an amenable number.

1662406448 is a deficient number, since it is larger than the sum of its proper divisors (1645558912).

1662406448 is a wasteful number, since it uses less digits than its factorization.

1662406448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808164 (or 2808158 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 1662406448 is about 40772.6188513811. The cubic root of 1662406448 is about 1184.6200299795.

The spelling of 1662406448 in words is "one billion, six hundred sixty-two million, four hundred six thousand, four hundred forty-eight".