40243220132 has 6 divisors (see below), whose sum is σ = 70425635238. Its totient is φ = 20121610064.

The previous prime is 40243220113. The next prime is 40243220137. The reversal of 40243220132 is 23102234204.

It can be written as a sum of positive squares in only one way, i.e., 29854310656 + 10388909476 = 172784^2 + 101926^2 .

It is a super-2 number, since 2×40243220132² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40243220098 and 40243220107.

It is not an unprimeable number, because it can be changed into a prime (40243220137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030402513 + ... + 5030402520.

It is an arithmetic number, because the mean of its divisors is an integer number (11737605873).

Almost surely, 2^40243220132 is an apocalyptic number.

It is an amenable number.

40243220132 is a deficient number, since it is larger than the sum of its proper divisors (30182415106).

40243220132 is a wasteful number, since it uses less digits than its factorization.

40243220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060805037 (or 10060805035 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40243220132 its reverse (23102234204), we get a palindrome (63345454336).

The spelling of 40243220132 in words is "forty billion, two hundred forty-three million, two hundred twenty thousand, one hundred thirty-two".