40156230740 has 24 divisors (see below), whose sum is σ = 89288560872. Its totient is φ = 15117639680.

The previous prime is 40156230731. The next prime is 40156230749. The reversal of 40156230740 is 4703265104.

It is an interprime number because it is at equal distance from previous prime (40156230731) and next prime (40156230749).

It can be written as a sum of positive squares in 4 ways, for example, as 3750827536 + 36405403204 = 61244^2 + 190802^2 .

It is a super-2 number, since 2×40156230740² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40156230697 and 40156230706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40156230749) 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, 59052941 + ... + 59053620.

It is an arithmetic number, because the mean of its divisors is an integer number (3720356703).

Almost surely, 2^40156230740 is an apocalyptic number.

It is an amenable number.

40156230740 is an abundant number, since it is smaller than the sum of its proper divisors (49132330132).

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

40156230740 is a wasteful number, since it uses less digits than its factorization.

40156230740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118106587 (or 118106585 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 40156230740 its reverse (4703265104), we get a palindrome (44859495844).

The spelling of 40156230740 in words is "forty billion, one hundred fifty-six million, two hundred thirty thousand, seven hundred forty".