236240040 has 64 divisors (see below), whose sum is σ = 711244800. Its totient is φ = 62772992.

The previous prime is 236240023. The next prime is 236240051. The reversal of 236240040 is 40042632.

It is a junction number, because it is equal to n+sod(n) for n = 236239989 and 236240016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31801 + ... + 38519.

It is an arithmetic number, because the mean of its divisors is an integer number (11113200).

Almost surely, 2^236240040 is an apocalyptic number.

236240040 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 236240040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355622400).

236240040 is an abundant number, since it is smaller than the sum of its proper divisors (475004760).

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

236240040 is a wasteful number, since it uses less digits than its factorization.

236240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7026 (or 7022 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 236240040 is about 15370.1021467003. The cubic root of 236240040 is about 618.1841074415.

Adding to 236240040 its reverse (40042632), we get a palindrome (276282672).

The spelling of 236240040 in words is "two hundred thirty-six million, two hundred forty thousand, forty".