238707420 has 120 divisors (see below), whose sum is σ = 780201744. Its totient is φ = 54528768.

The previous prime is 238707379. The next prime is 238707437. The reversal of 238707420 is 24707832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 143232 + ... + 144888.

Almost surely, 2^238707420 is an apocalyptic number.

238707420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238707420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390100872).

238707420 is an abundant number, since it is smaller than the sum of its proper divisors (541494324).

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

238707420 is a wasteful number, since it uses less digits than its factorization.

238707420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 238707420 is about 15450.1592224805. The cubic root of 238707420 is about 620.3288404712.

The spelling of 238707420 in words is "two hundred thirty-eight million, seven hundred seven thousand, four hundred twenty".