340344400 has 60 divisors (see below), whose sum is σ = 892023264. Its totient is φ = 123760000.

The previous prime is 340344383. The next prime is 340344421. The reversal of 340344400 is 4443043.

It is a happy number.

It is a super-3 number, since 3×340344400³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34276 + ... + 43075.

Almost surely, 2^340344400 is an apocalyptic number.

It is an amenable number.

340344400 is an abundant number, since it is smaller than the sum of its proper divisors (551678864).

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

340344400 is a wasteful number, since it uses less digits than its factorization.

340344400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77380 (or 77369 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 340344400 is about 18448.4254070639. The cubic root of 340344400 is about 698.1887870119.

Adding to 340344400 its reverse (4443043), we get a palindrome (344787443).

The spelling of 340344400 in words is "three hundred forty million, three hundred forty-four thousand, four hundred".