740517321 has 8 divisors (see below), whose sum is σ = 987596064. Its totient is φ = 493558400.

The previous prime is 740517317. The next prime is 740517353. The reversal of 740517321 is 123715047.

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 740517321 - 2² = 740517317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740517301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14376 + ... + 41081.

It is an arithmetic number, because the mean of its divisors is an integer number (123449508).

Almost surely, 2^740517321 is an apocalyptic number.

It is an amenable number.

740517321 is a deficient number, since it is larger than the sum of its proper divisors (247078743).

740517321 is a wasteful number, since it uses less digits than its factorization.

740517321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59911.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 740517321 is about 27212.4479053245. The cubic root of 740517321 is about 904.7148948789.

The spelling of 740517321 in words is "seven hundred forty million, five hundred seventeen thousand, three hundred twenty-one".