40261173740 has 48 divisors (see below), whose sum is σ = 87667507200. Its totient is φ = 15515029440.

The previous prime is 40261173707. The next prime is 40261173751. The reversal of 40261173740 is 4737116204.

40261173740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40261173740² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40261173740.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7340 + ... + 283859.

It is an arithmetic number, because the mean of its divisors is an integer number (1826406400).

Almost surely, 2^40261173740 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 40261173740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43833753600).

40261173740 is an abundant number, since it is smaller than the sum of its proper divisors (47406333460).

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

40261173740 is a wasteful number, since it uses less digits than its factorization.

40261173740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291462 (or 291460 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

Adding to 40261173740 its reverse (4737116204), we get a palindrome (44998289944).

The spelling of 40261173740 in words is "forty billion, two hundred sixty-one million, one hundred seventy-three thousand, seven hundred forty".