1539242 has 8 divisors (see below), whose sum is σ = 2314656. Its totient is φ = 767692.

The previous prime is 1539227. The next prime is 1539253. The reversal of 1539242 is 2429351.

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

It is an unprimeable number.

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, 443 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (289332).

2^1539242 is an apocalyptic number.

1539242 is a deficient number, since it is larger than the sum of its proper divisors (775414).

1539242 is a wasteful number, since it uses less digits than its factorization.

1539242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932.

The product of its digits is 2160, while the sum is 26.

The square root of 1539242 is about 1240.6619201056. The cubic root of 1539242 is about 115.4610851954.

The spelling of 1539242 in words is "one million, five hundred thirty-nine thousand, two hundred forty-two".