511442 has 16 divisors (see below), whose sum is σ = 828960. Its totient is φ = 235872.

The previous prime is 511439. The next prime is 511447. The reversal of 511442 is 244115.

It is a self number, because there is not a number n which added to its sum of digits gives 511442.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 511442.

It is not an unprimeable number, because it can be changed into a prime (511447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1478 + ... + 1790.

It is an arithmetic number, because the mean of its divisors is an integer number (51810).

2⁵¹¹⁴⁴² is an apocalyptic number.

511442 is a deficient number, since it is larger than the sum of its proper divisors (317518).

511442 is a wasteful number, since it uses less digits than its factorization.

511442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its digits is 160, while the sum is 17.

The square root of 511442 is about 715.1517321520. The cubic root of 511442 is about 79.9709269357.

Adding to 511442 its reverse (244115), we get a palindrome (755557).

The spelling of 511442 in words is "five hundred eleven thousand, four hundred forty-two".