1648432 has 20 divisors (see below), whose sum is σ = 3214080. Its totient is φ = 819008.

The previous prime is 1648429. The next prime is 1648441. The reversal of 1648432 is 2348461.

It is a self number, because there is not a number n which added to its sum of digits gives 1648432.

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, 4113 + ... + 4495.

It is an arithmetic number, because the mean of its divisors is an integer number (160704).

2^1648432 is an apocalyptic number.

It is an amenable number.

1648432 is a deficient number, since it is larger than the sum of its proper divisors (1565648).

1648432 is a wasteful number, since it uses less digits than its factorization.

1648432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 654 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 1648432 is about 1283.9127696226. The cubic root of 1648432 is about 118.1291318320.

It can be divided in two parts, 1648 and 432, that added together give a triangular number (2080 = T₆₄).

The spelling of 1648432 in words is "one million, six hundred forty-eight thousand, four hundred thirty-two".