34540231 has 16 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 30175200.

The previous prime is 34540229. The next prime is 34540237. The reversal of 34540231 is 13204543.

It is not a de Polignac number, because 34540231 - 2¹ = 34540229 is a prime.

It is a super-2 number, since 2×34540231² = 2386055115066722, 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 (34540237) 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, 67605 + ... + 68113.

It is an arithmetic number, because the mean of its divisors is an integer number (2448000).

Almost surely, 2^34540231 is an apocalyptic number.

34540231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

34540231 is a deficient number, since it is larger than the sum of its proper divisors (4627769).

34540231 is a wasteful number, since it uses less digits than its factorization.

34540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 34540231 is about 5877.0937545695. The cubic root of 34540231 is about 325.6679941339.

Adding to 34540231 its reverse (13204543), we get a palindrome (47744774).

The spelling of 34540231 in words is "thirty-four million, five hundred forty thousand, two hundred thirty-one".