340467521357 has 4 divisors (see below), whose sum is σ = 340481849916. Its totient is φ = 340453192800.

The previous prime is 340467521323. The next prime is 340467521467. The reversal of 340467521357 is 753125764043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125079639556 + 215387881801 = 353666^2 + 464099^2 .

It is a cyclic number.

It is not a de Polignac number, because 340467521357 - 2²² = 340463327053 is a prime.

It is a super-2 number, since 2×340467521357² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340467521957) 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, 7128578 + ... + 7176179.

It is an arithmetic number, because the mean of its divisors is an integer number (85120462479).

Almost surely, 2^340467521357 is an apocalyptic number.

It is an amenable number.

340467521357 is a deficient number, since it is larger than the sum of its proper divisors (14328559).

340467521357 is a wasteful number, since it uses less digits than its factorization.

340467521357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14328558.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 340467521357 in words is "three hundred forty billion, four hundred sixty-seven million, five hundred twenty-one thousand, three hundred fifty-seven".