740648 has 8 divisors (see below), whose sum is σ = 1388730. Its totient is φ = 370320.

The previous prime is 740603. The next prime is 740651. The reversal of 740648 is 846047.

It can be written as a sum of positive squares in only one way, i.e., 708964 + 31684 = 842^2 + 178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×740648³ = 1218868400576933376, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 740648.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46283 + ... + 46298.

2⁷⁴⁰⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

740648 is a deficient number, since it is larger than the sum of its proper divisors (648082).

740648 is a wasteful number, since it uses less digits than its factorization.

740648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92587 (or 92583 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 740648 is about 860.6090866357. The cubic root of 740648 is about 90.4768110057.

The spelling of 740648 in words is "seven hundred forty thousand, six hundred forty-eight".