1489432646 has 32 divisors (see below), whose sum is σ = 2451955968. Its totient is φ = 674388000.

The previous prime is 1489432631. The next prime is 1489432657. The reversal of 1489432646 is 6462349841.

It is a super-2 number, since 2×1489432646² = 4436819213941122632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1489432646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456521 + ... + 459771.

It is an arithmetic number, because the mean of its divisors is an integer number (76623624).

Almost surely, 2^1489432646 is an apocalyptic number.

1489432646 is a deficient number, since it is larger than the sum of its proper divisors (962523322).

1489432646 is a wasteful number, since it uses less digits than its factorization.

1489432646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596.

The product of its digits is 995328, while the sum is 47.

The square root of 1489432646 is about 38593.1683850912. The cubic root of 1489432646 is about 1142.0197717109.

The spelling of 1489432646 in words is "one billion, four hundred eighty-nine million, four hundred thirty-two thousand, six hundred forty-six".