740455 has 4 divisors (see below), whose sum is σ = 888552. Its totient is φ = 592360.

The previous prime is 740429. The next prime is 740461. The reversal of 740455 is 554047.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 740455 - 2⁵ = 740423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74041 + ... + 74050.

It is an arithmetic number, because the mean of its divisors is an integer number (222138).

2⁷⁴⁰⁴⁵⁵ is an apocalyptic number.

740455 is a deficient number, since it is larger than the sum of its proper divisors (148097).

740455 is a wasteful number, since it uses less digits than its factorization.

740455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148096.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 740455 is about 860.4969494426. The cubic root of 740455 is about 90.4689514280.

The spelling of 740455 in words is "seven hundred forty thousand, four hundred fifty-five".