340749487 has 8 divisors (see below), whose sum is σ = 367249680. Its totient is φ = 314290560.

The previous prime is 340749443. The next prime is 340749511. The reversal of 340749487 is 784947043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340749487 - 2⁷ = 340749359 is a prime.

It is a super-2 number, since 2×340749487² = 232220425781526338, which 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 (340749407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8064 + ... + 27322.

It is an arithmetic number, because the mean of its divisors is an integer number (45906210).

Almost surely, 2^340749487 is an apocalyptic number.

340749487 is a deficient number, since it is larger than the sum of its proper divisors (26500193).

340749487 is a wasteful number, since it uses less digits than its factorization.

340749487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20633.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 340749487 is about 18459.4010466212. The cubic root of 340749487 is about 698.4656781706.

The spelling of 340749487 in words is "three hundred forty million, seven hundred forty-nine thousand, four hundred eighty-seven".