740513243 has 2 divisors, whose sum is σ = 740513244. Its totient is φ = 740513242.

The previous prime is 740513233. The next prime is 740513261. The reversal of 740513243 is 342315047.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 740513243 - 2²² = 736318939 is a prime.

It is not a weakly prime, because it can be changed into another prime (740513233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370256621 + 370256622.

It is an arithmetic number, because the mean of its divisors is an integer number (370256622).

Almost surely, 2^740513243 is an apocalyptic number.

740513243 is a deficient number, since it is larger than the sum of its proper divisors (1).

740513243 is an equidigital number, since it uses as much as digits as its factorization.

740513243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 740513243 is about 27212.3729762768. The cubic root of 740513243 is about 904.7132341326.

The spelling of 740513243 in words is "seven hundred forty million, five hundred thirteen thousand, two hundred forty-three".