511012442 has 8 divisors (see below), whose sum is σ = 773302356. Its totient is φ = 253244992.

The previous prime is 511012423. The next prime is 511012471. The reversal of 511012442 is 244210115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 410832361 + 100180081 = 20269^2 + 10009^2 .

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

It is a super-2 number, since 2×511012442² = 522267431757606728, which contains 22 as substring.

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, 1130333 + ... + 1130784.

Almost surely, 2^511012442 is an apocalyptic number.

511012442 is a deficient number, since it is larger than the sum of its proper divisors (262289914).

511012442 is a wasteful number, since it uses less digits than its factorization.

511012442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261232.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 511012442 is about 22605.5843100770. The cubic root of 511012442 is about 799.4853158213.

Adding to 511012442 its reverse (244210115), we get a palindrome (755222557).

The spelling of 511012442 in words is "five hundred eleven million, twelve thousand, four hundred forty-two".