511374942 has 24 divisors (see below), whose sum is σ = 1193208744. Its totient is φ = 157346064.

The previous prime is 511374937. The next prime is 511374947. The reversal of 511374942 is 249473115.

It is an interprime number because it is at equal distance from previous prime (511374937) and next prime (511374947).

It is a junction number, because it is equal to n+sod(n) for n = 511374897 and 511374906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511374947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092448 + ... + 1092915.

It is an arithmetic number, because the mean of its divisors is an integer number (49717031).

Almost surely, 2^511374942 is an apocalyptic number.

511374942 is an abundant number, since it is smaller than the sum of its proper divisors (681833802).

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

511374942 is a wasteful number, since it uses less digits than its factorization.

511374942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185384 (or 2185381 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 511374942 is about 22613.6008189762. The cubic root of 511374942 is about 799.6743163891.

The spelling of 511374942 in words is "five hundred eleven million, three hundred seventy-four thousand, nine hundred forty-two".