340404560 has 20 divisors (see below), whose sum is σ = 791440788. Its totient is φ = 136161792.

The previous prime is 340404553. The next prime is 340404563. The reversal of 340404560 is 65404043.

It can be written as a sum of positive squares in 2 ways, for example, as 36529936 + 303874624 = 6044^2 + 17432^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×340404560³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340404563) 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, 2127449 + ... + 2127608.

Almost surely, 2^340404560 is an apocalyptic number.

It is an amenable number.

340404560 is an abundant number, since it is smaller than the sum of its proper divisors (451036228).

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

340404560 is a wasteful number, since it uses less digits than its factorization.

340404560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255070 (or 4255064 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 340404560 is about 18450.0558264738. The cubic root of 340404560 is about 698.2299223665.

The spelling of 340404560 in words is "three hundred forty million, four hundred four thousand, five hundred sixty".