238349790 has 160 divisors (see below), whose sum is σ = 740450304. Its totient is φ = 53887680.

The previous prime is 238349729. The next prime is 238349791. The reversal of 238349790 is 97943832.

It is a happy number.

238349790 is a `hidden beast` number, since 238 + 349 + 79 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238349791) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 719925 + ... + 720255.

Almost surely, 2^238349790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238349790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370225152).

238349790 is an abundant number, since it is smaller than the sum of its proper divisors (502100514).

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

238349790 is a wasteful number, since it uses less digits than its factorization.

238349790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 238349790 is about 15438.5812171974. The cubic root of 238349790 is about 620.0188946722.

The spelling of 238349790 in words is "two hundred thirty-eight million, three hundred forty-nine thousand, seven hundred ninety".