740640519 has 12 divisors (see below), whose sum is σ = 1070251000. Its totient is φ = 493558704.

The previous prime is 740640449. The next prime is 740640529. The reversal of 740640519 is 915046047.

740640519 is a `hidden beast` number, since 7 + 4 + 0 + 640 + 5 + 1 + 9 = 666.

It is not a de Polignac number, because 740640519 - 2²⁰ = 739591943 is a prime.

It is a super-2 number, since 2×740640519² = 1097096756769178722, 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 (740640529) 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 11 ways as a sum of consecutive naturals, for example, 8457 + ... + 39405.

Almost surely, 2^740640519 is an apocalyptic number.

740640519 is a deficient number, since it is larger than the sum of its proper divisors (329610481).

740640519 is a wasteful number, since it uses less digits than its factorization.

740640519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33614 (or 33611 counting only the distinct ones).

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

The square root of 740640519 is about 27214.7114443641. The cubic root of 740640519 is about 904.7650638090.

The spelling of 740640519 in words is "seven hundred forty million, six hundred forty thousand, five hundred nineteen".