3780042 has 16 divisors (see below), whose sum is σ = 8640192. Its totient is φ = 1080000.

The previous prime is 3780041. The next prime is 3780043. The reversal of 3780042 is 2400873.

It is an interprime number because it is at equal distance from previous prime (3780041) and next prime (3780043).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3779994 and 3780021.

It is not an unprimeable number, because it can be changed into a prime (3780041) 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 in 7 ways as a sum of consecutive naturals, for example, 44959 + ... + 45042.

It is an arithmetic number, because the mean of its divisors is an integer number (540012).

Almost surely, 2^3780042 is an apocalyptic number.

3780042 is an abundant number, since it is smaller than the sum of its proper divisors (4860150).

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

3780042 is a wasteful number, since it uses less digits than its factorization.

3780042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90013.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3780042 is about 1944.2330107269. The cubic root of 3780042 is about 155.7753999972.

It can be divided in two parts, 37800 and 42, that multiplied together give a square (1587600 = 1260²).

The spelling of 3780042 in words is "three million, seven hundred eighty thousand, forty-two".