740224 has 16 divisors (see below), whose sum is σ = 1474920. Its totient is φ = 370048.

The previous prime is 740191. The next prime is 740227. The reversal of 740224 is 422047.

740224 = T₃₇ + T₃₈ + ... + T₁₆₄.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2764 + ... + 3019.

2⁷⁴⁰²²⁴ is an apocalyptic number.

It is an amenable number.

740224 is a deficient number, since it is larger than the sum of its proper divisors (734696).

740224 is an equidigital number, since it uses as much as digits as its factorization.

740224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797 (or 5785 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 740224 is about 860.3627142084. The cubic root of 740224 is about 90.4595425729.

The spelling of 740224 in words is "seven hundred forty thousand, two hundred twenty-four", and thus it is an iban number.