511642 has 8 divisors (see below), whose sum is σ = 783936. Its totient is φ = 250332.

The previous prime is 511633. The next prime is 511669. The reversal of 511642 is 246115.

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

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, 2628 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (97992).

2⁵¹¹⁶⁴² is an apocalyptic number.

511642 is a deficient number, since it is larger than the sum of its proper divisors (272294).

511642 is a wasteful number, since it uses less digits than its factorization.

511642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492.

The product of its digits is 240, while the sum is 19.

The square root of 511642 is about 715.2915489505. The cubic root of 511642 is about 79.9813498191.

Adding to 511642 its reverse (246115), we get a palindrome (757757).

The spelling of 511642 in words is "five hundred eleven thousand, six hundred forty-two".