440061361 has 4 divisors (see below), whose sum is σ = 444174192. Its totient is φ = 435948532.

The previous prime is 440061319. The next prime is 440061367. The reversal of 440061361 is 163160044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440061361 - 2⁷ = 440061233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440061367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056255 + ... + 2056468.

It is an arithmetic number, because the mean of its divisors is an integer number (111043548).

Almost surely, 2^440061361 is an apocalyptic number.

It is an amenable number.

440061361 is a deficient number, since it is larger than the sum of its proper divisors (4112831).

440061361 is a wasteful number, since it uses less digits than its factorization.

440061361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112830.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 440061361 is about 20977.6395478614. The cubic root of 440061361 is about 760.6258470188.

The spelling of 440061361 in words is "four hundred forty million, sixty-one thousand, three hundred sixty-one".