440990 has 32 divisors (see below), whose sum is σ = 915840. Its totient is φ = 151200.

The previous prime is 440989. The next prime is 441011. The reversal of 440990 is 99044.

440990 = T₉₀ + T₉₁ + ... + T₁₄₉.

440990 is a modest number, since divided by 990 gives 440 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1985 + ... + 2195.

It is an arithmetic number, because the mean of its divisors is an integer number (28620).

2⁴⁴⁰⁹⁹⁰ is an apocalyptic number.

440990 is an abundant number, since it is smaller than the sum of its proper divisors (474850).

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

440990 is a wasteful number, since it uses less digits than its factorization.

440990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 440990 is about 664.0707793602. The cubic root of 440990 is about 76.1160507723.

It can be divided in two parts, 440 and 990, that multiplied together give a square (435600 = 660²).

The spelling of 440990 in words is "four hundred forty thousand, nine hundred ninety".