1666732 has 12 divisors (see below), whose sum is σ = 2988216. Its totient is φ = 812960.

The previous prime is 1666729. The next prime is 1666733. The reversal of 1666732 is 2376661.

It is a junction number, because it is equal to n+sod(n) for n = 1666694 and 1666703.

It is not an unprimeable number, because it can be changed into a prime (1666733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4918 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (249018).

2^1666732 is an apocalyptic number.

It is an amenable number.

1666732 is a deficient number, since it is larger than the sum of its proper divisors (1321484).

1666732 is a wasteful number, since it uses less digits than its factorization.

1666732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10208 (or 10206 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 1666732 is about 1291.0197519790. The cubic root of 1666732 is about 118.5646593541.

The spelling of 1666732 in words is "one million, six hundred sixty-six thousand, seven hundred thirty-two".