538780918 has 32 divisors (see below), whose sum is σ = 894079872. Its totient is φ = 241920000.

The previous prime is 538780909. The next prime is 538780919. The reversal of 538780918 is 819087835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538780919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717043 + ... + 717793.

It is an arithmetic number, because the mean of its divisors is an integer number (27939996).

Almost surely, 2^538780918 is an apocalyptic number.

538780918 is a deficient number, since it is larger than the sum of its proper divisors (355298954).

538780918 is a wasteful number, since it uses less digits than its factorization.

538780918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480.

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 538780918 is about 23211.6547880585. The cubic root of 538780918 is about 813.7120273959.

It can be divided in two parts, 538 and 780918, that added together give a square (781456 = 884²).

The spelling of 538780918 in words is "five hundred thirty-eight million, seven hundred eighty thousand, nine hundred eighteen".