440081504381 has 16 divisors (see below), whose sum is σ = 467834294400. Its totient is φ = 413180647488.

The previous prime is 440081504371. The next prime is 440081504411. The reversal of 440081504381 is 183405180044.

It is a cyclic number.

It is not a de Polignac number, because 440081504381 - 2³⁸ = 165203597437 is a prime.

It is a super-2 number, since 2×440081504381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440081504311) 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, 1729760 + ... + 1967798.

It is an arithmetic number, because the mean of its divisors is an integer number (29239643400).

Almost surely, 2^440081504381 is an apocalyptic number.

It is an amenable number.

440081504381 is a deficient number, since it is larger than the sum of its proper divisors (27752790019).

440081504381 is a wasteful number, since it uses less digits than its factorization.

440081504381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239828.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 440081504381 in words is "four hundred forty billion, eighty-one million, five hundred four thousand, three hundred eighty-one".