511578040 has 32 divisors (see below), whose sum is σ = 1211634000. Its totient is φ = 193860864.

The previous prime is 511578037. The next prime is 511578047. The reversal of 511578040 is 40875115.

It is a junction number, because it is equal to n+sod(n) for n = 511577993 and 511578011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511578047) 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, 335805 + ... + 337324.

Almost surely, 2^511578040 is an apocalyptic number.

It is an amenable number.

511578040 is an abundant number, since it is smaller than the sum of its proper divisors (700055960).

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

511578040 is a wasteful number, since it uses less digits than its factorization.

511578040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673159 (or 673155 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 511578040 is about 22618.0909892944. The cubic root of 511578040 is about 799.7801687650.

The spelling of 511578040 in words is "five hundred eleven million, five hundred seventy-eight thousand, forty".