34143240 has 32 divisors (see below), whose sum is σ = 102430080. Its totient is φ = 9104832.

The previous prime is 34143233. The next prime is 34143251. The reversal of 34143240 is 4234143.

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, 142144 + ... + 142383.

It is an arithmetic number, because the mean of its divisors is an integer number (3200940).

Almost surely, 2^34143240 is an apocalyptic number.

34143240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34143240 is an abundant number, since it is smaller than the sum of its proper divisors (68286840).

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

34143240 is a wasteful number, since it uses less digits than its factorization.

34143240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284541 (or 284537 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 34143240 is about 5843.2217140889. The cubic root of 34143240 is about 324.4154858678.

Adding to 34143240 its reverse (4234143), we get a palindrome (38377383).

The spelling of 34143240 in words is "thirty-four million, one hundred forty-three thousand, two hundred forty".