739640640 has 56 divisors (see below), whose sum is σ = 2348362080. Its totient is φ = 197237248.

The previous prime is 739640633. The next prime is 739640651. The reversal of 739640640 is 46046937.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384270 + ... + 386189.

Almost surely, 2^739640640 is an apocalyptic number.

It is an amenable number.

739640640 is an abundant number, since it is smaller than the sum of its proper divisors (1608721440).

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

739640640 is a wasteful number, since it uses less digits than its factorization.

739640640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770479 (or 770469 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 739640640 is about 27196.3350472081. The cubic root of 739640640 is about 904.3577303499.

The spelling of 739640640 in words is "seven hundred thirty-nine million, six hundred forty thousand, six hundred forty".