340423545 has 64 divisors (see below), whose sum is σ = 681799680. Its totient is φ = 140908800.

The previous prime is 340423541. The next prime is 340423597. The reversal of 340423545 is 545324043.

It is not a de Polignac number, because 340423545 - 2² = 340423541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340423541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414235 + ... + 415055.

It is an arithmetic number, because the mean of its divisors is an integer number (10653120).

Almost surely, 2^340423545 is an apocalyptic number.

340423545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340423545 is an abundant number, since it is smaller than the sum of its proper divisors (341376135).

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

340423545 is a wasteful number, since it uses less digits than its factorization.

340423545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 340423545 is about 18450.5703163886. The cubic root of 340423545 is about 698.2429026555.

Adding to 340423545 its reverse (545324043), we get a palindrome (885747588).

The spelling of 340423545 in words is "three hundred forty million, four hundred twenty-three thousand, five hundred forty-five".