238890099 has 16 divisors (see below), whose sum is σ = 364585472. Its totient is φ = 136297728.

The previous prime is 238890089. The next prime is 238890107. The reversal of 238890099 is 990098832.

It is not a de Polignac number, because 238890099 - 2⁴ = 238890083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238890089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5682 + ... + 22584.

It is an arithmetic number, because the mean of its divisors is an integer number (22786592).

Almost surely, 2^238890099 is an apocalyptic number.

238890099 is a deficient number, since it is larger than the sum of its proper divisors (125695373).

238890099 is a wasteful number, since it uses less digits than its factorization.

238890099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17586.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 238890099 is about 15456.0699726677. The cubic root of 238890099 is about 620.4870427270.

The spelling of 238890099 in words is "two hundred thirty-eight million, eight hundred ninety thousand, ninety-nine".