40205601413 has 4 divisors (see below), whose sum is σ = 40279919148. Its totient is φ = 40131283680.

The previous prime is 40205601407. The next prime is 40205601419. The reversal of 40205601413 is 31410650204.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40205601407) and next prime (40205601419).

It can be written as a sum of positive squares in 2 ways, for example, as 26627059684 + 13578541729 = 163178^2 + 116527^2 .

It is a cyclic number.

It is not a de Polignac number, because 40205601413 - 2¹⁴ = 40205585029 is a prime.

It is a super-4 number, since 4×40205601413⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205601419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37158056 + ... + 37159137.

It is an arithmetic number, because the mean of its divisors is an integer number (10069979787).

Almost surely, 2^40205601413 is an apocalyptic number.

It is an amenable number.

40205601413 is a deficient number, since it is larger than the sum of its proper divisors (74317735).

40205601413 is an equidigital number, since it uses as much as digits as its factorization.

40205601413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74317734.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 40205601413 in words is "forty billion, two hundred five million, six hundred one thousand, four hundred thirteen".