238540340 has 24 divisors (see below), whose sum is σ = 506973600. Its totient is φ = 94265888.

The previous prime is 238540339. The next prime is 238540373. The reversal of 238540340 is 43045832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70190 + ... + 73509.

It is an arithmetic number, because the mean of its divisors is an integer number (21123900).

Almost surely, 2^238540340 is an apocalyptic number.

238540340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238540340 is an abundant number, since it is smaller than the sum of its proper divisors (268433260).

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

238540340 is a wasteful number, since it uses less digits than its factorization.

238540340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143791 (or 143789 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 238540340 is about 15444.7512119814. The cubic root of 238540340 is about 620.1840764562.

The spelling of 238540340 in words is "two hundred thirty-eight million, five hundred forty thousand, three hundred forty".