538418290 has 8 divisors (see below), whose sum is σ = 969152940. Its totient is φ = 215367312.

The previous prime is 538418281. The next prime is 538418291. The reversal of 538418290 is 92814835.

It can be written as a sum of positive squares in 2 ways, for example, as 529874361 + 8543929 = 23019^2 + 2923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (538418291) 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 3 ways as a sum of consecutive naturals, for example, 26920905 + ... + 26920924.

Almost surely, 2^538418290 is an apocalyptic number.

538418290 is a deficient number, since it is larger than the sum of its proper divisors (430734650).

538418290 is a wasteful number, since it uses less digits than its factorization.

538418290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53841836.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 538418290 is about 23203.8421387493. The cubic root of 538418290 is about 813.5294293736.

The spelling of 538418290 in words is "five hundred thirty-eight million, four hundred eighteen thousand, two hundred ninety".