238769818 has 32 divisors (see below), whose sum is σ = 426384000. Its totient is φ = 98113344.

The previous prime is 238769803. The next prime is 238769849. The reversal of 238769818 is 818967832.

It is a super-2 number, since 2×238769818² = 114022051975506248, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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, 58521 + ... + 62467.

It is an arithmetic number, because the mean of its divisors is an integer number (13324500).

Almost surely, 2^238769818 is an apocalyptic number.

238769818 is a deficient number, since it is larger than the sum of its proper divisors (187614182).

238769818 is a wasteful number, since it uses less digits than its factorization.

238769818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134.

The product of its digits is 1161216, while the sum is 52.

The square root of 238769818 is about 15452.1784224749. The cubic root of 238769818 is about 620.3828869783.

The spelling of 238769818 in words is "two hundred thirty-eight million, seven hundred sixty-nine thousand, eight hundred eighteen".