340539231 has 16 divisors (see below), whose sum is σ = 477175424. Its totient is φ = 215750304.

The previous prime is 340539229. The next prime is 340539239. The reversal of 340539231 is 132935043.

It is not a de Polignac number, because 340539231 - 2¹ = 340539229 is a prime.

It is a super-2 number, since 2×340539231² = 231933935700142722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340539239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30901 + ... + 40446.

It is an arithmetic number, because the mean of its divisors is an integer number (29823464).

Almost surely, 2^340539231 is an apocalyptic number.

340539231 is a deficient number, since it is larger than the sum of its proper divisors (136636193).

340539231 is a wasteful number, since it uses less digits than its factorization.

340539231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71430.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 340539231 is about 18453.7050751333. The cubic root of 340539231 is about 698.3219882350.

The spelling of 340539231 in words is "three hundred forty million, five hundred thirty-nine thousand, two hundred thirty-one".