34311240 has 96 divisors (see below), whose sum is σ = 112320000. Its totient is φ = 9083520.

The previous prime is 34311229. The next prime is 34311259. The reversal of 34311240 is 4211343.

It is a super-2 number, since 2×34311240² = 2354522380675200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68511 + ... + 69009.

It is an arithmetic number, because the mean of its divisors is an integer number (1170000).

Almost surely, 2^34311240 is an apocalyptic number.

34311240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34311240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56160000).

34311240 is an abundant number, since it is smaller than the sum of its proper divisors (78008760).

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

34311240 is a wasteful number, since it uses less digits than its factorization.

34311240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 34311240 is about 5857.5797049635. The cubic root of 34311240 is about 324.9467052649.

Adding to 34311240 its reverse (4211343), we get a palindrome (38522583).

The spelling of 34311240 in words is "thirty-four million, three hundred eleven thousand, two hundred forty".