945490 has 32 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 298944.

The previous prime is 945481. The next prime is 945521. The reversal of 945490 is 94549.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

945490 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 15 ways as a sum of consecutive naturals, for example, 391 + ... + 1429.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2⁹⁴⁵⁴⁹⁰ is an apocalyptic number.

945490 is an abundant number, since it is smaller than the sum of its proper divisors (1151150).

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

945490 is a wasteful number, since it uses less digits than its factorization.

945490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 945490 is about 972.3631009042. The cubic root of 945490 is about 98.1489474595.

It can be divided in two parts, 9454 and 90, that multiplied together give a triangular number (850860 = T₁₃₀₄).

The spelling of 945490 in words is "nine hundred forty-five thousand, four hundred ninety".