40010400324 has 18 divisors (see below), whose sum is σ = 101137400910. Its totient is φ = 13336800096.

The previous prime is 40010400323. The next prime is 40010400341. The reversal of 40010400324 is 42300401004.

It can be written as a sum of positive squares in only one way, i.e., 22236177924 + 17774222400 = 149118^2 + 133320^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40010400297 and 40010400306.

It is not an unprimeable number, because it can be changed into a prime (40010400323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555699969 + ... + 555700040.

It is an arithmetic number, because the mean of its divisors is an integer number (5618744495).

Almost surely, 2^40010400324 is an apocalyptic number.

It is an amenable number.

40010400324 is an abundant number, since it is smaller than the sum of its proper divisors (61127000586).

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

40010400324 is a wasteful number, since it uses less digits than its factorization.

40010400324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111400019 (or 1111400014 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40010400324 its reverse (42300401004), we get a palindrome (82310801328).

The spelling of 40010400324 in words is "forty billion, ten million, four hundred thousand, three hundred twenty-four".