3720042 has 24 divisors (see below), whose sum is σ = 8534916. Its totient is φ = 1166976.

The previous prime is 3720037. The next prime is 3720103. The reversal of 3720042 is 2400273.

It is a happy number.

3720042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 68121 = 1911^2 + 261^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3719997 and 3720024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5773 + ... + 6384.

Almost surely, 2^3720042 is an apocalyptic number.

3720042 is an abundant number, since it is smaller than the sum of its proper divisors (4814874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3720042 is a wasteful number, since it uses less digits than its factorization.

3720042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182 (or 12179 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3720042 is about 1928.7410401607. The cubic root of 3720042 is about 154.9468010286.

The spelling of 3720042 in words is "three million, seven hundred twenty thousand, forty-two".