944030040681 has 32 divisors (see below), whose sum is σ = 1549861277440. Its totient is φ = 497730127104.

The previous prime is 944030040677. The next prime is 944030040721. The reversal of 944030040681 is 186040030449.

It is a happy number.

944030040681 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 944030040681 - 2² = 944030040677 is a prime.

It is a super-2 number, since 2×944030040681² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (944030040641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142570 + ... + 1381443.

It is an arithmetic number, because the mean of its divisors is an integer number (48433164920).

Almost surely, 2^944030040681 is an apocalyptic number.

944030040681 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

944030040681 is a deficient number, since it is larger than the sum of its proper divisors (605831236759).

944030040681 is a wasteful number, since it uses less digits than its factorization.

944030040681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526305.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 944030040681 in words is "nine hundred forty-four billion, thirty million, forty thousand, six hundred eighty-one".