235131420 has 96 divisors (see below), whose sum is σ = 721224000. Its totient is φ = 56971264.

The previous prime is 235131397. The next prime is 235131443. The reversal of 235131420 is 24131532.

It is an interprime number because it is at equal distance from previous prime (235131397) and next prime (235131443).

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, 25606 + ... + 33554.

It is an arithmetic number, because the mean of its divisors is an integer number (7512750).

Almost surely, 2^235131420 is an apocalyptic number.

235131420 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 235131420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360612000).

235131420 is an abundant number, since it is smaller than the sum of its proper divisors (486092580).

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

235131420 is a wasteful number, since it uses less digits than its factorization.

235131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007 (or 8005 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 235131420 is about 15333.9955654096. The cubic root of 235131420 is about 617.2155923911.

Adding to 235131420 its reverse (24131532), we get a palindrome (259262952).

The spelling of 235131420 in words is "two hundred thirty-five million, one hundred thirty-one thousand, four hundred twenty".