40261640260 has 48 divisors (see below), whose sum is σ = 89557063344. Its totient is φ = 15151546368.

The previous prime is 40261640257. The next prime is 40261640273. The reversal of 40261640260 is 6204616204.

40261640260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5504749636 + 34756890624 = 74194^2 + 186432^2 .

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, 929812 + ... + 972148.

It is an arithmetic number, because the mean of its divisors is an integer number (1865772153).

Almost surely, 2^40261640260 is an apocalyptic number.

It is an amenable number.

40261640260 is an abundant number, since it is smaller than the sum of its proper divisors (49295423084).

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

40261640260 is a wasteful number, since it uses less digits than its factorization.

40261640260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45160 (or 45158 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 40261640260 in words is "forty billion, two hundred sixty-one million, six hundred forty thousand, two hundred sixty".