238944930 has 128 divisors (see below), whose sum is σ = 695955456. Its totient is φ = 51321600.

The previous prime is 238944889. The next prime is 238944961. The reversal of 238944930 is 39449832.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 294225 + ... + 295035.

It is an arithmetic number, because the mean of its divisors is an integer number (5437152).

Almost surely, 2^238944930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238944930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347977728).

238944930 is an abundant number, since it is smaller than the sum of its proper divisors (457010526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238944930 is a wasteful number, since it uses less digits than its factorization.

238944930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 238944930 is about 15457.8436400424. The cubic root of 238944930 is about 620.5345113085.

The spelling of 238944930 in words is "two hundred thirty-eight million, nine hundred forty-four thousand, nine hundred thirty".