236145240 has 128 divisors (see below), whose sum is σ = 806500800. Its totient is φ = 61424640.

The previous prime is 236145229. The next prime is 236145251. The reversal of 236145240 is 42541632.

236145240 is a `hidden beast` number, since 2 + 3 + 614 + 5 + 2 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (236145229) and next prime (236145251).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41614 + ... + 46946.

Almost surely, 2^236145240 is an apocalyptic number.

236145240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236145240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403250400).

236145240 is an abundant number, since it is smaller than the sum of its proper divisors (570355560).

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

236145240 is a wasteful number, since it uses less digits than its factorization.

236145240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394 (or 5384 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 236145240 is about 15367.0179280171. The cubic root of 236145240 is about 618.1014066792.

Adding to 236145240 its reverse (42541632), we get a palindrome (278686872).

The spelling of 236145240 in words is "two hundred thirty-six million, one hundred forty-five thousand, two hundred forty".