343740540 has 96 divisors (see below), whose sum is σ = 1130766336. Its totient is φ = 76919040.

The previous prime is 343740503. The next prime is 343740541. The reversal of 343740540 is 45047343.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 343740498 and 343740507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343740541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11452 + ... + 28611.

It is an arithmetic number, because the mean of its divisors is an integer number (11778816).

Almost surely, 2^343740540 is an apocalyptic number.

343740540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343740540 is an abundant number, since it is smaller than the sum of its proper divisors (787025796).

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

343740540 is a wasteful number, since it uses less digits than its factorization.

343740540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40099 (or 40097 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 343740540 is about 18540.2410987560. The cubic root of 343740540 is about 700.5034065947.

Adding to 343740540 its reverse (45047343), we get a palindrome (388787883).

The spelling of 343740540 in words is "three hundred forty-three million, seven hundred forty thousand, five hundred forty".