238190340240 has 60 divisors (see below), whose sum is σ = 799922561724. Its totient is φ = 63517423872.

The previous prime is 238190340233. The next prime is 238190340257. The reversal of 238190340240 is 42043091832.

238190340240 is a `hidden beast` number, since 2 + 381 + 9 + 0 + 34 + 0 + 240 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 77126176656 + 161064163584 = 277716^2 + 401328^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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 = 238190340195 and 238190340204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165409239 + ... + 165410678.

Almost surely, 2^238190340240 is an apocalyptic number.

238190340240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238190340240 is an abundant number, since it is smaller than the sum of its proper divisors (561732221484).

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

238190340240 is a wasteful number, since it uses less digits than its factorization.

238190340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330819936 (or 330819927 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 238190340240 in words is "two hundred thirty-eight billion, one hundred ninety million, three hundred forty thousand, two hundred forty".