1662189464 has 32 divisors (see below), whose sum is σ = 3532998000. Its totient is φ = 726786432.

The previous prime is 1662189409. The next prime is 1662189509. The reversal of 1662189464 is 4649812661.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 418619 + ... + 422570.

Almost surely, 2^1662189464 is an apocalyptic number.

It is an amenable number.

1662189464 is an abundant number, since it is smaller than the sum of its proper divisors (1870808536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1662189464 is a wasteful number, since it uses less digits than its factorization.

1662189464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841227 (or 841223 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 1662189464 is about 40769.9578611507. The cubic root of 1662189464 is about 1184.5684872742.

The spelling of 1662189464 in words is "one billion, six hundred sixty-two million, one hundred eighty-nine thousand, four hundred sixty-four".