235211940 has 36 divisors (see below), whose sum is σ = 713476764. Its totient is φ = 62723136.

The previous prime is 235211927. The next prime is 235211947. The reversal of 235211940 is 49112532.

It can be written as a sum of positive squares in 2 ways, for example, as 86713344 + 148498596 = 9312^2 + 12186^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235211947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653187 + ... + 653546.

It is an arithmetic number, because the mean of its divisors is an integer number (19818799).

Almost surely, 2^235211940 is an apocalyptic number.

235211940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235211940 is an abundant number, since it is smaller than the sum of its proper divisors (478264824).

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

235211940 is a wasteful number, since it uses less digits than its factorization.

235211940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306748 (or 1306743 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 235211940 is about 15336.6208794506. The cubic root of 235211940 is about 617.2860388498.

The spelling of 235211940 in words is "two hundred thirty-five million, two hundred eleven thousand, nine hundred forty".