740443601 has 2 divisors, whose sum is σ = 740443602. Its totient is φ = 740443600.

The previous prime is 740443589. The next prime is 740443621. The reversal of 740443601 is 106344047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674752576 + 65691025 = 25976^2 + 8105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740443601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (740443621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370221800 + 370221801.

It is an arithmetic number, because the mean of its divisors is an integer number (370221801).

Almost surely, 2^740443601 is an apocalyptic number.

It is an amenable number.

740443601 is a deficient number, since it is larger than the sum of its proper divisors (1).

740443601 is an equidigital number, since it uses as much as digits as its factorization.

740443601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 740443601 is about 27211.0933444432. The cubic root of 740443601 is about 904.6848718155.

Adding to 740443601 its reverse (106344047), we get a palindrome (846787648).

The spelling of 740443601 in words is "seven hundred forty million, four hundred forty-three thousand, six hundred one".