511342 has 16 divisors (see below), whose sum is σ = 840672. Its totient is φ = 231840.

The previous prime is 511337. The next prime is 511351. The reversal of 511342 is 243115.

It is a super-2 number, since 2×511342² = 522941281928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

511342 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 1708 + ... + 1984.

It is an arithmetic number, because the mean of its divisors is an integer number (52542).

2⁵¹¹³⁴² is an apocalyptic number.

511342 is a deficient number, since it is larger than the sum of its proper divisors (329330).

511342 is a wasteful number, since it uses less digits than its factorization.

511342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 120, while the sum is 16.

The square root of 511342 is about 715.0818135011. The cubic root of 511342 is about 79.9657144751.

Adding to 511342 its reverse (243115), we get a palindrome (754457).

The spelling of 511342 in words is "five hundred eleven thousand, three hundred forty-two".