40154544224 has 72 divisors (see below), whose sum is σ = 84052941840. Its totient is φ = 18860438016.

The previous prime is 40154544217. The next prime is 40154544229. The reversal of 40154544224 is 42244545104.

It is a happy number.

It is a super-2 number, since 2×40154544224² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40154544229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1254629 + ... + 1286235.

It is an arithmetic number, because the mean of its divisors is an integer number (1167401970).

Almost surely, 2^40154544224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40154544224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42026470920).

40154544224 is an abundant number, since it is smaller than the sum of its proper divisors (43898397616).

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

40154544224 is a wasteful number, since it uses less digits than its factorization.

40154544224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31720 (or 31675 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

The spelling of 40154544224 in words is "forty billion, one hundred fifty-four million, five hundred forty-four thousand, two hundred twenty-four".