340411840 has 56 divisors (see below), whose sum is σ = 832542912. Its totient is φ = 132480000.

The previous prime is 340411823. The next prime is 340411849. The reversal of 340411840 is 48114043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340411849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536 + ... + 26215.

Almost surely, 2^340411840 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 340411840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416271456).

340411840 is an abundant number, since it is smaller than the sum of its proper divisors (492131072).

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

340411840 is a wasteful number, since it uses less digits than its factorization.

340411840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28805 (or 28795 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 340411840 is about 18450.2531147949. The cubic root of 340411840 is about 698.2348998533.

Adding to 340411840 its reverse (48114043), we get a palindrome (388525883).

The spelling of 340411840 in words is "three hundred forty million, four hundred eleven thousand, eight hundred forty".