34399956 has 72 divisors (see below), whose sum is σ = 87860640. Its totient is φ = 10445760.

The previous prime is 34399921. The next prime is 34399991. The reversal of 34399956 is 65999343.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (34399921) and next prime (34399991).

It is a congruent number.

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, 219030 + ... + 219186.

Almost surely, 2^34399956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34399956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43930320).

34399956 is an abundant number, since it is smaller than the sum of its proper divisors (53460684).

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

34399956 is a wasteful number, since it uses less digits than its factorization.

34399956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 212 counting only the distinct ones).

The product of its digits is 787320, while the sum is 48.

The square root of 34399956 is about 5865.1475684760. The cubic root of 34399956 is about 325.2265276732.

The spelling of 34399956 in words is "thirty-four million, three hundred ninety-nine thousand, nine hundred fifty-six".