440121134 has 4 divisors (see below), whose sum is σ = 660181704. Its totient is φ = 220060566.

The previous prime is 440121133. The next prime is 440121151. The reversal of 440121134 is 431121044.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×440121134² = 387413225186891912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440121133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110030282 + ... + 110030285.

It is an arithmetic number, because the mean of its divisors is an integer number (165045426).

Almost surely, 2^440121134 is an apocalyptic number.

440121134 is a deficient number, since it is larger than the sum of its proper divisors (220060570).

440121134 is a wasteful number, since it uses less digits than its factorization.

440121134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220060569.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 440121134 is about 20979.0641831327. The cubic root of 440121134 is about 760.6602837546.

Adding to 440121134 its reverse (431121044), we get a palindrome (871242178).

The spelling of 440121134 in words is "four hundred forty million, one hundred twenty-one thousand, one hundred thirty-four".