538701890 has 16 divisors (see below), whose sum is σ = 973901880. Its totient is φ = 214538880.

The previous prime is 538701881. The next prime is 538701923. The reversal of 538701890 is 98107835.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 521254561 + 17447329 = 22831^2 + 4177^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115331 + ... + 119910.

Almost surely, 2^538701890 is an apocalyptic number.

538701890 is a deficient number, since it is larger than the sum of its proper divisors (435199990).

538701890 is a wasteful number, since it uses less digits than its factorization.

538701890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235477.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 538701890 is about 23209.9523911619. The cubic root of 538701890 is about 813.6722405509.

The spelling of 538701890 in words is "five hundred thirty-eight million, seven hundred one thousand, eight hundred ninety".