34399240 has 16 divisors (see below), whose sum is σ = 77398380. Its totient is φ = 13759680.

The previous prime is 34399223. The next prime is 34399247. The reversal of 34399240 is 4299343.

It can be written as a sum of positive squares in 2 ways, for example, as 32285124 + 2114116 = 5682^2 + 1454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34399196 and 34399205.

It is not an unprimeable number, because it can be changed into a prime (34399247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429951 + ... + 430030.

Almost surely, 2^34399240 is an apocalyptic number.

It is an amenable number.

34399240 is an abundant number, since it is smaller than the sum of its proper divisors (42999140).

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

34399240 is a wasteful number, since it uses less digits than its factorization.

34399240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859992 (or 859988 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 34399240 is about 5865.0865296260. The cubic root of 34399240 is about 325.2242712381.

The spelling of 34399240 in words is "thirty-four million, three hundred ninety-nine thousand, two hundred forty".