235230236040 has 128 divisors (see below), whose sum is σ = 720170352000. Its totient is φ = 61453928448.

The previous prime is 235230236029. The next prime is 235230236057. The reversal of 235230236040 is 40632032532.

It is a super-2 number, since 2×235230236040² (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 = 235230235989 and 235230236007.

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, 1063087 + ... + 1265153.

It is an arithmetic number, because the mean of its divisors is an integer number (5626330875).

Almost surely, 2^235230236040 is an apocalyptic number.

235230236040 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 235230236040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360085176000).

235230236040 is an abundant number, since it is smaller than the sum of its proper divisors (484940115960).

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

235230236040 is a wasteful number, since it uses less digits than its factorization.

235230236040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202279 (or 202275 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 235230236040 its reverse (40632032532), we get a palindrome (275862268572).

The spelling of 235230236040 in words is "two hundred thirty-five billion, two hundred thirty million, two hundred thirty-six thousand, forty".