440142007 has 4 divisors (see below), whose sum is σ = 459278640. Its totient is φ = 421005376.

The previous prime is 440141983. The next prime is 440142041. The reversal of 440142007 is 700241044.

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

It is a cyclic number.

It is not a de Polignac number, because 440142007 - 2¹⁵ = 440109239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440142107) 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, 9568282 + ... + 9568327.

It is an arithmetic number, because the mean of its divisors is an integer number (114819660).

Almost surely, 2^440142007 is an apocalyptic number.

440142007 is a deficient number, since it is larger than the sum of its proper divisors (19136633).

440142007 is a wasteful number, since it uses less digits than its factorization.

440142007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136632.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 440142007 is about 20979.5616493768. The cubic root of 440142007 is about 760.6723084829.

The spelling of 440142007 in words is "four hundred forty million, one hundred forty-two thousand, seven".