235274640 has 80 divisors (see below), whose sum is σ = 738643200. Its totient is φ = 61940736.

The previous prime is 235274639. The next prime is 235274671. The reversal of 235274640 is 46472532.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12756 + ... + 25164.

It is an arithmetic number, because the mean of its divisors is an integer number (9233040).

Almost surely, 2^235274640 is an apocalyptic number.

235274640 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 235274640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369321600).

235274640 is an abundant number, since it is smaller than the sum of its proper divisors (503368560).

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

235274640 is a wasteful number, since it uses less digits than its factorization.

235274640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504 (or 12498 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 235274640 is about 15338.6648701900. The cubic root of 235274640 is about 617.3408835657.

The spelling of 235274640 in words is "two hundred thirty-five million, two hundred seventy-four thousand, six hundred forty".