40413121044 has 24 divisors (see below), whose sum is σ = 94451128800. Its totient is φ = 13449062304.

The previous prime is 40413121043. The next prime is 40413121069. The reversal of 40413121044 is 44012131404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40413121043) 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, 2739594 + ... + 2754305.

It is an arithmetic number, because the mean of its divisors is an integer number (3935463700).

Almost surely, 2^40413121044 is an apocalyptic number.

It is an amenable number.

40413121044 is an abundant number, since it is smaller than the sum of its proper divisors (54038007756).

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

40413121044 is a wasteful number, since it uses less digits than its factorization.

40413121044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494519 (or 5494517 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40413121044 its reverse (44012131404), we get a palindrome (84425252448).

The spelling of 40413121044 in words is "forty billion, four hundred thirteen million, one hundred twenty-one thousand, forty-four".