340408746 has 24 divisors (see below), whose sum is σ = 740810304. Its totient is φ = 112968360.

The previous prime is 340408721. The next prime is 340408751. The reversal of 340408746 is 647804043.

It is a super-2 number, since 2×340408746² = 231756228706585032, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 340408746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37570 + ... + 45741.

It is an arithmetic number, because the mean of its divisors is an integer number (30867096).

Almost surely, 2^340408746 is an apocalyptic number.

340408746 is an abundant number, since it is smaller than the sum of its proper divisors (400401558).

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

340408746 is a wasteful number, since it uses less digits than its factorization.

340408746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83546 (or 83543 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 340408746 is about 18450.1692675162. The cubic root of 340408746 is about 698.2327844301.

The spelling of 340408746 in words is "three hundred forty million, four hundred eight thousand, seven hundred forty-six".