232740209 has 12 divisors (see below), whose sum is σ = 257889456. Its totient is φ = 209834352.

The previous prime is 232740169. The next prime is 232740229. The reversal of 232740209 is 902047232.

It is a happy number.

It is not a de Polignac number, because 232740209 - 2¹² = 232736113 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (232740229) 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, 8747 + ... + 23280.

It is an arithmetic number, because the mean of its divisors is an integer number (21490788).

Almost surely, 2^232740209 is an apocalyptic number.

It is an amenable number.

232740209 is a deficient number, since it is larger than the sum of its proper divisors (25149247).

232740209 is a wasteful number, since it uses less digits than its factorization.

232740209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32096 (or 32083 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 232740209 is about 15255.8254119533. The cubic root of 232740209 is about 615.1161646300.

The spelling of 232740209 in words is "two hundred thirty-two million, seven hundred forty thousand, two hundred nine".