40415031444 has 48 divisors (see below), whose sum is σ = 94873704128. Its totient is φ = 13390092288.

The previous prime is 40415031409. The next prime is 40415031457. The reversal of 40415031444 is 44413051404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2857839 + ... + 2871945.

Almost surely, 2^40415031444 is an apocalyptic number.

It is an amenable number.

40415031444 is an abundant number, since it is smaller than the sum of its proper divisors (54458672684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40415031444 is a wasteful number, since it uses less digits than its factorization.

40415031444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15544 (or 15542 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 40415031444 its reverse (44413051404), we get a palindrome (84828082848).

The spelling of 40415031444 in words is "forty billion, four hundred fifteen million, thirty-one thousand, four hundred forty-four".