340445540 has 24 divisors (see below), whose sum is σ = 746020800. Its totient is φ = 130257248.

The previous prime is 340445533. The next prime is 340445543. The reversal of 340445540 is 45544043.

It is not an unprimeable number, because it can be changed into a prime (340445543) 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, 369590 + ... + 370509.

It is an arithmetic number, because the mean of its divisors is an integer number (31084200).

Almost surely, 2^340445540 is an apocalyptic number.

It is an amenable number.

340445540 is an abundant number, since it is smaller than the sum of its proper divisors (405575260).

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

340445540 is a wasteful number, since it uses less digits than its factorization.

340445540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740131 (or 740129 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 340445540 is about 18451.1663587969. The cubic root of 340445540 is about 698.2579403168.

Adding to 340445540 its reverse (45544043), we get a palindrome (385989583).

The spelling of 340445540 in words is "three hundred forty million, four hundred forty-five thousand, five hundred forty".