440790025 has 81 divisors (see below), whose sum is σ = 663553791. Its totient is φ = 290234880.

The previous prime is 440790013. The next prime is 440790037. The reversal of 440790025 is 520097044.

The square root of 440790025 is 20995.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (440790013) and next prime (440790037).

It can be written as a sum of positive squares in 13 ways, for example, as 321018889 + 119771136 = 17917^2 + 10944^2 .

It is not a de Polignac number, because 440790025 - 2⁷ = 440789897 is a prime.

It is a super-2 number, since 2×440790025² = 388591692279001250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 23199466 + ... + 23199484.

Almost surely, 2^440790025 is an apocalyptic number.

440790025 is the 20995-th square number.

440790025 is the 10498-th centered octagonal number.

It is an amenable number.

440790025 is a deficient number, since it is larger than the sum of its proper divisors (222763766).

440790025 is a wasteful number, since it uses less digits than its factorization.

440790025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The cubic root of 440790025 is about 761.0454362656.

The spelling of 440790025 in words is "four hundred forty million, seven hundred ninety thousand, twenty-five".