40444031403 has 8 divisors (see below), whose sum is σ = 59917083600. Its totient is φ = 26962687584.

The previous prime is 40444031323. The next prime is 40444031413. The reversal of 40444031403 is 30413044404.

It is not a de Polignac number, because 40444031403 - 2¹⁶ = 40443965867 is a prime.

It is a super-3 number, since 3×40444031403³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1497927089 = 40444031403 / (4 + 0 + 4 + 4 + 4 + 0 + 3 + 1 + 4 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (40444031413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748963518 + ... + 748963571.

It is an arithmetic number, because the mean of its divisors is an integer number (7489635450).

Almost surely, 2^40444031403 is an apocalyptic number.

40444031403 is a deficient number, since it is larger than the sum of its proper divisors (19473052197).

40444031403 is a wasteful number, since it uses less digits than its factorization.

40444031403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497927098 (or 1497927092 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40444031403 its reverse (30413044404), we get a palindrome (70857075807).

The spelling of 40444031403 in words is "forty billion, four hundred forty-four million, thirty-one thousand, four hundred three".