740257440 has 192 divisors, whose sum is σ = 2539143936. Its totient is φ = 180191232.

The previous prime is 740257391. The next prime is 740257447. The reversal of 740257440 is 44752047.

740257440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (740257447) 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, 604669 + ... + 605891.

It is an arithmetic number, because the mean of its divisors is an integer number (13224708).

Almost surely, 2^740257440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740257440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269571968).

740257440 is an abundant number, since it is smaller than the sum of its proper divisors (1798886496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740257440 is a wasteful number, since it uses less digits than its factorization.

740257440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 740257440 is about 27207.6724473079. The cubic root of 740257440 is about 904.6090473789.

The spelling of 740257440 in words is "seven hundred forty million, two hundred fifty-seven thousand, four hundred forty".