511938490 has 16 divisors (see below), whose sum is σ = 1053130752. Its totient is φ = 175521744.

The previous prime is 511938487. The next prime is 511938509. The reversal of 511938490 is 94839115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656634 + ... + 3656773.

It is an arithmetic number, because the mean of its divisors is an integer number (65820672).

Almost surely, 2^511938490 is an apocalyptic number.

511938490 is an abundant number, since it is smaller than the sum of its proper divisors (541192262).

511938490 is a wasteful number, since it uses less digits than its factorization.

511938490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313421.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 511938490 is about 22626.0577653289. The cubic root of 511938490 is about 799.9679622587.

The spelling of 511938490 in words is "five hundred eleven million, nine hundred thirty-eight thousand, four hundred ninety".