511143342 has 32 divisors (see below), whose sum is σ = 1056291840. Its totient is φ = 164804640.

The previous prime is 511143341. The next prime is 511143349. The reversal of 511143342 is 243341115.

It is a happy number.

It is a super-2 number, since 2×511143342² = 522535032141857928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511143341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11259 + ... + 33897.

It is an arithmetic number, because the mean of its divisors is an integer number (33009120).

Almost surely, 2^511143342 is an apocalyptic number.

511143342 is an abundant number, since it is smaller than the sum of its proper divisors (545148498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511143342 is a wasteful number, since it uses less digits than its factorization.

511143342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22768.

The product of its digits is 1440, while the sum is 24.

The square root of 511143342 is about 22608.4794269761. The cubic root of 511143342 is about 799.5535748854.

Adding to 511143342 its reverse (243341115), we get a palindrome (754484457).

The spelling of 511143342 in words is "five hundred eleven million, one hundred forty-three thousand, three hundred forty-two".