238649541 has 16 divisors (see below), whose sum is σ = 357576576. Its totient is φ = 140475456.

The previous prime is 238649473. The next prime is 238649581. The reversal of 238649541 is 145946832.

It is not a de Polignac number, because 238649541 - 2¹⁰ = 238648517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238649493 and 238649502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238649581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132130 + ... + 133923.

It is an arithmetic number, because the mean of its divisors is an integer number (22348536).

Almost surely, 2^238649541 is an apocalyptic number.

It is an amenable number.

238649541 is a deficient number, since it is larger than the sum of its proper divisors (118927035).

238649541 is a wasteful number, since it uses less digits than its factorization.

238649541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266092.

The product of its digits is 207360, while the sum is 42.

The square root of 238649541 is about 15448.2860214329. The cubic root of 238649541 is about 620.2786997100.

The spelling of 238649541 in words is "two hundred thirty-eight million, six hundred forty-nine thousand, five hundred forty-one".