238749946 has 8 divisors (see below), whose sum is σ = 358753824. Its totient is φ = 119165340.

The previous prime is 238749919. The next prime is 238749949. The reversal of 238749946 is 649947832.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 238749893 and 238749902.

It is not an unprimeable number, because it can be changed into a prime (238749949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103390 + ... + 105673.

It is an arithmetic number, because the mean of its divisors is an integer number (44844228).

Almost surely, 2^238749946 is an apocalyptic number.

238749946 is a deficient number, since it is larger than the sum of its proper divisors (120003878).

238749946 is a wasteful number, since it uses less digits than its factorization.

238749946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209636.

The product of its digits is 2612736, while the sum is 52.

The square root of 238749946 is about 15451.5353929634. The cubic root of 238749946 is about 620.3656757148.

The spelling of 238749946 in words is "two hundred thirty-eight million, seven hundred forty-nine thousand, nine hundred forty-six".