440402064 has 40 divisors (see below), whose sum is σ = 1197587040. Its totient is φ = 139074048.

The previous prime is 440402041. The next prime is 440402093. The reversal of 440402064 is 460204044.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240537 + ... + 242360.

It is an arithmetic number, because the mean of its divisors is an integer number (29939676).

Almost surely, 2^440402064 is an apocalyptic number.

It is an amenable number.

440402064 is an abundant number, since it is smaller than the sum of its proper divisors (757184976).

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

440402064 is a wasteful number, since it uses less digits than its factorization.

440402064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482927 (or 482921 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 440402064 is about 20985.7585995837. The cubic root of 440402064 is about 760.8220928767.

The spelling of 440402064 in words is "four hundred forty million, four hundred two thousand, sixty-four".