3742205 has 4 divisors (see below), whose sum is σ = 4490652. Its totient is φ = 2993760.

The previous prime is 3742201. The next prime is 3742223. The reversal of 3742205 is 5022473.

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 1267876 + 2474329 = 1126^2 + 1573^2 .

It is not a de Polignac number, because 3742205 - 2² = 3742201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3742201) 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, 374216 + ... + 374225.

It is an arithmetic number, because the mean of its divisors is an integer number (1122663).

Almost surely, 2^3742205 is an apocalyptic number.

It is an amenable number.

3742205 is a deficient number, since it is larger than the sum of its proper divisors (748447).

3742205 is an equidigital number, since it uses as much as digits as its factorization.

3742205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748446.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 3742205 is about 1934.4779657572. The cubic root of 3742205 is about 155.2539022792.

Adding to 3742205 its reverse (5022473), we get a palindrome (8764678).

The spelling of 3742205 in words is "three million, seven hundred forty-two thousand, two hundred five".