440013530 has 32 divisors (see below), whose sum is σ = 882420480. Its totient is φ = 156598720.

The previous prime is 440013527. The next prime is 440013551. The reversal of 440013530 is 35310044.

It is a super-2 number, since 2×440013530² = 387223813166121800, which contains 22 as substring.

440013530 is a modest number, since divided by 13530 gives 4400 as remainder.

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, 37385 + ... + 47724.

It is an arithmetic number, because the mean of its divisors is an integer number (27575640).

Almost surely, 2^440013530 is an apocalyptic number.

440013530 is an abundant number, since it is smaller than the sum of its proper divisors (442406950).

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

440013530 is a wasteful number, since it uses less digits than its factorization.

440013530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85174.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 440013530 is about 20976.4994696446. The cubic root of 440013530 is about 760.5982881249.

Adding to 440013530 its reverse (35310044), we get a palindrome (475323574).

The spelling of 440013530 in words is "four hundred forty million, thirteen thousand, five hundred thirty".