740456 has 8 divisors (see below), whose sum is σ = 1388370. Its totient is φ = 370224.

The previous prime is 740429. The next prime is 740461. The reversal of 740456 is 654047.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 17956 = 850^2 + 134^2 .

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

It is an unprimeable number.

740456 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 as a sum of consecutive naturals, namely, 46271 + ... + 46286.

2⁷⁴⁰⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

740456 is a deficient number, since it is larger than the sum of its proper divisors (647914).

740456 is a wasteful number, since it uses less digits than its factorization.

740456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92563 (or 92559 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 740456 is about 860.4975305020. The cubic root of 740456 is about 90.4689921547.

The spelling of 740456 in words is "seven hundred forty thousand, four hundred fifty-six".