235243201440 has 192 divisors, whose sum is σ = 832714235136. Its totient is φ = 55388332032.

The previous prime is 235243201433. The next prime is 235243201441. The reversal of 235243201440 is 44102342532.

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 = 235243201398 and 235243201407.

It is not an unprimeable number, because it can be changed into a prime (235243201441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 676029 + ... + 963068.

It is an arithmetic number, because the mean of its divisors is an integer number (4337053308).

Almost surely, 2^235243201440 is an apocalyptic number.

235243201440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235243201440 is an abundant number, since it is smaller than the sum of its proper divisors (597471033696).

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

235243201440 is a wasteful number, since it uses less digits than its factorization.

235243201440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639151 (or 1639143 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 235243201440 its reverse (44102342532), we get a palindrome (279345543972).

The spelling of 235243201440 in words is "two hundred thirty-five billion, two hundred forty-three million, two hundred one thousand, four hundred forty".