938145890 has 16 divisors (see below), whose sum is σ = 1842177600. Its totient is φ = 341143920.

The previous prime is 938145863. The next prime is 938145893. The reversal of 938145890 is 98541839.

It is not an unprimeable number, because it can be changed into a prime (938145893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4264190 + ... + 4264409.

It is an arithmetic number, because the mean of its divisors is an integer number (115136100).

Almost surely, 2^938145890 is an apocalyptic number.

938145890 is a deficient number, since it is larger than the sum of its proper divisors (904031710).

938145890 is a wasteful number, since it uses less digits than its factorization.

938145890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8528617.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 938145890 is about 30629.1673083027. The cubic root of 938145890 is about 978.9416208163.

The spelling of 938145890 in words is "nine hundred thirty-eight million, one hundred forty-five thousand, eight hundred ninety".