3910042 has 4 divisors (see below), whose sum is σ = 5865066. Its totient is φ = 1955020.

The previous prime is 3910031. The next prime is 3910043. The reversal of 3910042 is 2400193.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2400193 = 599 ⋅4007.

It can be written as a sum of positive squares in only one way, i.e., 3837681 + 72361 = 1959^2 + 269^2 .

It is not an unprimeable number, because it can be changed into a prime (3910043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977509 + ... + 977512.

Almost surely, 2^3910042 is an apocalyptic number.

3910042 is a deficient number, since it is larger than the sum of its proper divisors (1955024).

3910042 is a wasteful number, since it uses less digits than its factorization.

3910042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955023.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3910042 is about 1977.3826134565. The cubic root of 3910042 is about 157.5410760421.

The spelling of 3910042 in words is "three million, nine hundred ten thousand, forty-two".