40545431200 has 72 divisors (see below), whose sum is σ = 100604303100. Its totient is φ = 15952281600.

The previous prime is 40545431183. The next prime is 40545431219. The reversal of 40545431200 is 213454504.

It can be written as a sum of positive squares in 6 ways, for example, as 1192464 + 40544238736 = 1092^2 + 201356^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366625 + ... + 464224.

Almost surely, 2^40545431200 is an apocalyptic number.

40545431200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40545431200 is an abundant number, since it is smaller than the sum of its proper divisors (60058871900).

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

40545431200 is a wasteful number, since it uses less digits than its factorization.

40545431200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830930 (or 830917 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 40545431200 its reverse (213454504), we get a palindrome (40758885704).

The spelling of 40545431200 in words is "forty billion, five hundred forty-five million, four hundred thirty-one thousand, two hundred".