238267440 has 160 divisors (see below), whose sum is σ = 838517760. Its totient is φ = 62159616.

The previous prime is 238267423. The next prime is 238267453. The reversal of 238267440 is 44762832.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 238267395 and 238267404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100347 + ... + 102693.

It is an arithmetic number, because the mean of its divisors is an integer number (5240736).

Almost surely, 2^238267440 is an apocalyptic number.

238267440 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 238267440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419258880).

238267440 is an abundant number, since it is smaller than the sum of its proper divisors (600250320).

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

238267440 is a wasteful number, since it uses less digits than its factorization.

238267440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 238267440 is about 15435.9139671093. The cubic root of 238267440 is about 619.9474808097.

The spelling of 238267440 in words is "two hundred thirty-eight million, two hundred sixty-seven thousand, four hundred forty".