3940123 has 6 divisors (see below), whose sum is σ = 4331012. Its totient is φ = 3581820.

The previous prime is 3940121. The next prime is 3940127. The reversal of 3940123 is 3210493.

It is not a de Polignac number, because 3940123 - 2¹ = 3940121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3940094 and 3940103.

It is not an unprimeable number, because it can be changed into a prime (3940121) 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 5 ways as a sum of consecutive naturals, for example, 16161 + ... + 16402.

Almost surely, 2^3940123 is an apocalyptic number.

3940123 is a deficient number, since it is larger than the sum of its proper divisors (390889).

3940123 is a wasteful number, since it uses less digits than its factorization.

3940123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32585 (or 32574 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3940123 is about 1984.9743071385. The cubic root of 3940123 is about 157.9440463089.

It can be divided in two parts, 3940 and 123, that multiplied together give a triangular number (484620 = T₉₈₄).

The spelling of 3940123 in words is "three million, nine hundred forty thousand, one hundred twenty-three".