236021452140 has 96 divisors (see below), whose sum is σ = 676842566400. Its totient is φ = 61419568896.

The previous prime is 236021452111. The next prime is 236021452157. The reversal of 236021452140 is 41254120632.

It is a super-2 number, since 2×236021452140² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 236021452098 and 236021452107.

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, 2840911 + ... + 2922809.

It is an arithmetic number, because the mean of its divisors is an integer number (7050443400).

Almost surely, 2^236021452140 is an apocalyptic number.

236021452140 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 236021452140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338421283200).

236021452140 is an abundant number, since it is smaller than the sum of its proper divisors (440821114260).

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

236021452140 is a wasteful number, since it uses less digits than its factorization.

236021452140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83071 (or 83069 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 236021452140 its reverse (41254120632), we get a palindrome (277275572772).

The spelling of 236021452140 in words is "two hundred thirty-six billion, twenty-one million, four hundred fifty-two thousand, one hundred forty".