538780936 has 8 divisors (see below), whose sum is σ = 1010214270. Its totient is φ = 269390464.

The previous prime is 538780933. The next prime is 538780943. The reversal of 538780936 is 639087835.

It can be written as a sum of positive squares in only one way, i.e., 419840100 + 118940836 = 20490^2 + 10906^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 538780936.

It is not an unprimeable number, because it can be changed into a prime (538780933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33673801 + ... + 33673816.

Almost surely, 2^538780936 is an apocalyptic number.

It is an amenable number.

538780936 is a deficient number, since it is larger than the sum of its proper divisors (471433334).

538780936 is a wasteful number, since it uses less digits than its factorization.

538780936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67347623 (or 67347619 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 538780936 is about 23211.6551757948. The cubic root of 538780936 is about 813.7120364576.

The spelling of 538780936 in words is "five hundred thirty-eight million, seven hundred eighty thousand, nine hundred thirty-six".