233404340 has 24 divisors (see below), whose sum is σ = 527853480. Its totient is φ = 86179968.

The previous prime is 233404333. The next prime is 233404393. The reversal of 233404340 is 43404332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51208336 + 182196004 = 7156^2 + 13498^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448595 + ... + 449114.

It is an arithmetic number, because the mean of its divisors is an integer number (21993895).

Almost surely, 2^233404340 is an apocalyptic number.

233404340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233404340 is an abundant number, since it is smaller than the sum of its proper divisors (294449140).

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

233404340 is a wasteful number, since it uses less digits than its factorization.

233404340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897731 (or 897729 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 233404340 is about 15277.5763784705. The cubic root of 233404340 is about 615.7006929871.

Adding to 233404340 its reverse (43404332), we get a palindrome (276808672).

The spelling of 233404340 in words is "two hundred thirty-three million, four hundred four thousand, three hundred forty".