40940140401 has 24 divisors (see below), whose sum is σ = 62960310504. Its totient is φ = 25545991680.

The previous prime is 40940140361. The next prime is 40940140403. The reversal of 40940140401 is 10404104904.

40940140401 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 4 ways, for example, as 1235592801 + 39704547600 = 35151^2 + 199260^2 .

It is not a de Polignac number, because 40940140401 - 2¹¹ = 40940138353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40940140403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 711486 + ... + 766871.

It is an arithmetic number, because the mean of its divisors is an integer number (2623346271).

Almost surely, 2^40940140401 is an apocalyptic number.

It is an amenable number.

40940140401 is a deficient number, since it is larger than the sum of its proper divisors (22020170103).

40940140401 is a wasteful number, since it uses less digits than its factorization.

40940140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478561 (or 1478558 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 40940140401 in words is "forty billion, nine hundred forty million, one hundred forty thousand, four hundred one".