440013087 has 16 divisors (see below), whose sum is σ = 653218560. Its totient is φ = 292735800.

The previous prime is 440013059. The next prime is 440013089. The reversal of 440013087 is 780310044.

It is not a de Polignac number, because 440013087 - 2⁷ = 440012959 is a prime.

It is a super-2 number, since 2×440013087² = 387223033462539138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 440013087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440013089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339 + ... + 29852.

It is an arithmetic number, because the mean of its divisors is an integer number (40826160).

Almost surely, 2^440013087 is an apocalyptic number.

440013087 is a deficient number, since it is larger than the sum of its proper divisors (213205473).

440013087 is a wasteful number, since it uses less digits than its factorization.

440013087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33691 (or 33685 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 440013087 is about 20976.4889102061. The cubic root of 440013087 is about 760.5980328713.

The spelling of 440013087 in words is "four hundred forty million, thirteen thousand, eighty-seven".