740497240 has 64 divisors (see below), whose sum is σ = 1906882560. Its totient is φ = 253518720.

The previous prime is 740497207. The next prime is 740497253. The reversal of 740497240 is 42794047.

It is a self number, because there is not a number n which added to its sum of digits gives 740497240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253629 + ... + 256531.

It is an arithmetic number, because the mean of its divisors is an integer number (29795040).

Almost surely, 2^740497240 is an apocalyptic number.

740497240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

740497240 is an abundant number, since it is smaller than the sum of its proper divisors (1166385320).

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

740497240 is a wasteful number, since it uses less digits than its factorization.

740497240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832 (or 3828 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 740497240 is about 27212.0789356491. The cubic root of 740497240 is about 904.7067169275.

The spelling of 740497240 in words is "seven hundred forty million, four hundred ninety-seven thousand, two hundred forty".