740448 has 48 divisors (see below), whose sum is σ = 2162160. Its totient is φ = 246528.

The previous prime is 740429. The next prime is 740461. The reversal of 740448 is 844047.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

740448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (45045).

2⁷⁴⁰⁴⁴⁸ 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 740448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081080).

740448 is an abundant number, since it is smaller than the sum of its proper divisors (1421712).

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

740448 is a wasteful number, since it uses less digits than its factorization.

740448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 740448 is about 860.4928820159. The cubic root of 740448 is about 90.4686663400.

The spelling of 740448 in words is "seven hundred forty thousand, four hundred forty-eight".