740830509 has 16 divisors (see below), whose sum is σ = 1098148800. Its totient is φ = 493607088.

The previous prime is 740830507. The next prime is 740830523. The reversal of 740830509 is 905038047.

740830509 is a `hidden beast` number, since 74 + 0 + 83 + 0 + 509 = 666.

It is not a de Polignac number, because 740830509 - 2¹ = 740830507 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740830507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 48022 + ... + 61544.

It is an arithmetic number, because the mean of its divisors is an integer number (68634300).

Almost surely, 2^740830509 is an apocalyptic number.

It is an amenable number.

740830509 is a deficient number, since it is larger than the sum of its proper divisors (357318291).

740830509 is a wasteful number, since it uses less digits than its factorization.

740830509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561 (or 15555 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 740830509 is about 27218.2017958571. The cubic root of 740830509 is about 904.8424210036.

The spelling of 740830509 in words is "seven hundred forty million, eight hundred thirty thousand, five hundred nine".