740090 has 16 divisors (see below), whose sum is σ = 1434888. Its totient is φ = 273216.

The previous prime is 740087. The next prime is 740099. The reversal of 740090 is 90047.

It can be written as a sum of positive squares in 4 ways, for example, as 305809 + 434281 = 553^2 + 659^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (740099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2717 + ... + 2976.

2⁷⁴⁰⁰⁹⁰ is an apocalyptic number.

740090 is a deficient number, since it is larger than the sum of its proper divisors (694798).

740090 is a wasteful number, since it uses less digits than its factorization.

740090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 740090 is about 860.2848365512. The cubic root of 740090 is about 90.4540837253.

The spelling of 740090 in words is "seven hundred forty thousand, ninety".