34398440 has 32 divisors (see below), whose sum is σ = 77573160. Its totient is φ = 13728000.

The previous prime is 34398439. The next prime is 34398451. The reversal of 34398440 is 4489343.

It can be written as a sum of positive squares in 4 ways, for example, as 20811844 + 13586596 = 4562^2 + 3686^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 34398440.

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, 25790 + ... + 27090.

Almost surely, 2^34398440 is an apocalyptic number.

It is an amenable number.

34398440 is an abundant number, since it is smaller than the sum of its proper divisors (43174720).

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

34398440 is a wasteful number, since it uses less digits than its factorization.

34398440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 34398440 is about 5865.0183290421. The cubic root of 34398440 is about 325.2217500445.

The spelling of 34398440 in words is "thirty-four million, three hundred ninety-eight thousand, four hundred forty".