1661452 has 24 divisors (see below), whose sum is σ = 3175200. Its totient is φ = 756096.

The previous prime is 1661447. The next prime is 1661479. The reversal of 1661452 is 2541661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4449 + ... + 4807.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

2^1661452 is an apocalyptic number.

It is an amenable number.

1661452 is a deficient number, since it is larger than the sum of its proper divisors (1513748).

1661452 is a wasteful number, since it uses less digits than its factorization.

1661452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 463 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1661452 is about 1288.9732347881. The cubic root of 1661452 is about 118.4393275431.

The spelling of 1661452 in words is "one million, six hundred sixty-one thousand, four hundred fifty-two".