511346772 has 36 divisors (see below), whose sum is σ = 1360602880. Its totient is φ = 161477712.

The previous prime is 511346729. The next prime is 511346777. The reversal of 511346772 is 277643115.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×511346772² = 522951042469639968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511346777) 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, 373108 + ... + 374475.

Almost surely, 2^511346772 is an apocalyptic number.

It is an amenable number.

511346772 is an abundant number, since it is smaller than the sum of its proper divisors (849256108).

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

511346772 is a wasteful number, since it uses less digits than its factorization.

511346772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747612 (or 747607 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 511346772 is about 22612.9779551478. The cubic root of 511346772 is about 799.6596322911.

Adding to 511346772 its reverse (277643115), we get a palindrome (788989887).

The spelling of 511346772 in words is "five hundred eleven million, three hundred forty-six thousand, seven hundred seventy-two".