3705242 has 4 divisors (see below), whose sum is σ = 5557866. Its totient is φ = 1852620.

The previous prime is 3705241. The next prime is 3705257. The reversal of 3705242 is 2425073.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2425073 = 7 ⋅346439.

It can be written as a sum of positive squares in only one way, i.e., 2785561 + 919681 = 1669^2 + 959^2 .

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (3705241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926309 + ... + 926312.

Almost surely, 2^3705242 is an apocalyptic number.

3705242 is a deficient number, since it is larger than the sum of its proper divisors (1852624).

3705242 is a wasteful number, since it uses less digits than its factorization.

3705242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852623.

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

The square root of 3705242 is about 1924.9005169099. The cubic root of 3705242 is about 154.7410452389.

The spelling of 3705242 in words is "three million, seven hundred five thousand, two hundred forty-two".