238867420 has 48 divisors (see below), whose sum is σ = 571027968. Its totient is φ = 83082560.

The previous prime is 238867339. The next prime is 238867439. The reversal of 238867420 is 24768832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18544 + ... + 28663.

It is an arithmetic number, because the mean of its divisors is an integer number (11896416).

Almost surely, 2^238867420 is an apocalyptic number.

238867420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238867420 is an abundant number, since it is smaller than the sum of its proper divisors (332160548).

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

238867420 is a wasteful number, since it uses less digits than its factorization.

238867420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47250 (or 47248 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 238867420 is about 15455.3362952736. The cubic root of 238867420 is about 620.4674068204.

The spelling of 238867420 in words is "two hundred thirty-eight million, eight hundred sixty-seven thousand, four hundred twenty".