3690405941 has 4 divisors (see below), whose sum is σ = 3780415884. Its totient is φ = 3600396000.

The previous prime is 3690405911. The next prime is 3690405949. The reversal of 3690405941 is 1495040963.

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

It can be written as a sum of positive squares in 2 ways, for example, as 250114225 + 3440291716 = 15815^2 + 58654^2 .

It is a cyclic number.

It is not a de Polignac number, because 3690405941 - 2¹⁴ = 3690389557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 90009901 = 3690405941 / (3 + 6 + 9 + 0 + 4 + 0 + 5 + 9 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3690405949) 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, 45004910 + ... + 45004991.

It is an arithmetic number, because the mean of its divisors is an integer number (945103971).

Almost surely, 2^3690405941 is an apocalyptic number.

It is an amenable number.

3690405941 is a deficient number, since it is larger than the sum of its proper divisors (90009943).

3690405941 is an equidigital number, since it uses as much as digits as its factorization.

3690405941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90009942.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 3690405941 is about 60748.7114348938. The cubic root of 3690405941 is about 1545.3423749426.

The spelling of 3690405941 in words is "three billion, six hundred ninety million, four hundred five thousand, nine hundred forty-one".