838242590 has 32 divisors (see below), whose sum is σ = 1578139200. Its totient is φ = 319965184.

The previous prime is 838242571. The next prime is 838242607. The reversal of 838242590 is 95242838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99212 + ... + 107328.

It is an arithmetic number, because the mean of its divisors is an integer number (49316850).

Almost surely, 2^838242590 is an apocalyptic number.

838242590 is a deficient number, since it is larger than the sum of its proper divisors (739896610).

838242590 is a wasteful number, since it uses less digits than its factorization.

838242590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 838242590 is about 28952.4194153097. The cubic root of 838242590 is about 942.8803269147.

The spelling of 838242590 in words is "eight hundred thirty-eight million, two hundred forty-two thousand, five hundred ninety".