34143520 has 24 divisors (see below), whose sum is σ = 80664444. Its totient is φ = 13657344.

The previous prime is 34143517. The next prime is 34143533. The reversal of 34143520 is 2534143.

It can be written as a sum of positive squares in 2 ways, for example, as 32216976 + 1926544 = 5676^2 + 1388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34143491 and 34143500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106539 + ... + 106858.

Almost surely, 2^34143520 is an apocalyptic number.

It is an amenable number.

34143520 is an abundant number, since it is smaller than the sum of its proper divisors (46520924).

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

34143520 is a wasteful number, since it uses less digits than its factorization.

34143520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213412 (or 213404 counting only the distinct ones).

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

The square root of 34143520 is about 5843.2456734250. The cubic root of 34143520 is about 324.4163726816.

Adding to 34143520 its reverse (2534143), we get a palindrome (36677663).

The spelling of 34143520 in words is "thirty-four million, one hundred forty-three thousand, five hundred twenty".