440161340 has 12 divisors (see below), whose sum is σ = 924338856. Its totient is φ = 176064528.

The previous prime is 440161321. The next prime is 440161349. The reversal of 440161340 is 43161044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440161349) 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, 11004014 + ... + 11004053.

It is an arithmetic number, because the mean of its divisors is an integer number (77028238).

Almost surely, 2^440161340 is an apocalyptic number.

It is an amenable number.

440161340 is an abundant number, since it is smaller than the sum of its proper divisors (484177516).

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

440161340 is a wasteful number, since it uses less digits than its factorization.

440161340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22008076 (or 22008074 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 440161340 is about 20980.0224022759. The cubic root of 440161340 is about 760.6834456933.

The spelling of 440161340 in words is "four hundred forty million, one hundred sixty-one thousand, three hundred forty".