236389146 has 96 divisors (see below), whose sum is σ = 589079040. Its totient is φ = 61744032.

The previous prime is 236389133. The next prime is 236389157. The reversal of 236389146 is 641983632.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 236389098 and 236389107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2848021 + ... + 2848103.

It is an arithmetic number, because the mean of its divisors is an integer number (6136240).

Almost surely, 2^236389146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236389146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294539520).

236389146 is an abundant number, since it is smaller than the sum of its proper divisors (352689894).

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

236389146 is a wasteful number, since it uses less digits than its factorization.

236389146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 157 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 236389146 is about 15374.9519023638. The cubic root of 236389146 is about 618.3141384244.

The spelling of 236389146 in words is "two hundred thirty-six million, three hundred eighty-nine thousand, one hundred forty-six".