1654642 has 8 divisors (see below), whose sum is σ = 2707632. Its totient is φ = 752100.

The previous prime is 1654579. The next prime is 1654649. The reversal of 1654642 is 2464561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1654642.

It is not an unprimeable number, because it can be changed into a prime (1654649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37584 + ... + 37627.

It is an arithmetic number, because the mean of its divisors is an integer number (338454).

2^1654642 is an apocalyptic number.

1654642 is a deficient number, since it is larger than the sum of its proper divisors (1052990).

1654642 is a wasteful number, since it uses less digits than its factorization.

1654642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75224.

The product of its digits is 5760, while the sum is 28.

The square root of 1654642 is about 1286.3288848502. The cubic root of 1654642 is about 118.2772852781.

The spelling of 1654642 in words is "one million, six hundred fifty-four thousand, six hundred forty-two".