740749247 has 32 divisors (see below), whose sum is σ = 917790720. Its totient is φ = 583925760.

The previous prime is 740749241. The next prime is 740749249. The reversal of 740749247 is 742947047.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 740749247 - 2¹⁰ = 740748223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 740749198 and 740749207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740749241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 962879 + ... + 963647.

It is an arithmetic number, because the mean of its divisors is an integer number (28680960).

Almost surely, 2^740749247 is an apocalyptic number.

740749247 is a deficient number, since it is larger than the sum of its proper divisors (177041473).

740749247 is a wasteful number, since it uses less digits than its factorization.

740749247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 740749247 is about 27216.7089671033. The cubic root of 740749247 is about 904.8093356160.

The spelling of 740749247 in words is "seven hundred forty million, seven hundred forty-nine thousand, two hundred forty-seven".