740509312 has 16 divisors (see below), whose sum is σ = 1475233650. Its totient is φ = 370254592.

The previous prime is 740509277. The next prime is 740509313. The reversal of 740509312 is 213905047.

It can be written as a sum of positive squares in only one way, i.e., 408686656 + 331822656 = 20216^2 + 18216^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (740509313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2892487 + ... + 2892742.

Almost surely, 2^740509312 is an apocalyptic number.

It is an amenable number.

740509312 is a deficient number, since it is larger than the sum of its proper divisors (734724338).

740509312 is an equidigital number, since it uses as much as digits as its factorization.

740509312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785243 (or 5785231 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 740509312 is about 27212.3007480073. The cubic root of 740509312 is about 904.7116332457.

The spelling of 740509312 in words is "seven hundred forty million, five hundred nine thousand, three hundred twelve".