340749489 has 16 divisors (see below), whose sum is σ = 470384640. Its totient is φ = 219184080.

The previous prime is 340749443. The next prime is 340749511. The reversal of 340749489 is 984947043.

It is not a de Polignac number, because 340749489 - 2¹² = 340745393 is a prime.

It is a super-2 number, since 2×340749489² = 232220428507522242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340749089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26992 + ... + 37550.

It is an arithmetic number, because the mean of its divisors is an integer number (29399040).

Almost surely, 2^340749489 is an apocalyptic number.

It is an amenable number.

340749489 is a deficient number, since it is larger than the sum of its proper divisors (129635151).

340749489 is a wasteful number, since it uses less digits than its factorization.

340749489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 340749489 is about 18459.4011007941. The cubic root of 340749489 is about 698.4656795371.

The spelling of 340749489 in words is "three hundred forty million, seven hundred forty-nine thousand, four hundred eighty-nine".