3874240 has 28 divisors (see below), whose sum is σ = 9226296. Its totient is φ = 1549568.

The previous prime is 3874237. The next prime is 3874243. The reversal of 3874240 is 424783.

3874240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3874237) and next prime (3874243).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3874199 and 3874208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5734 + ... + 6373.

Almost surely, 2^3874240 is an apocalyptic number.

It is an amenable number.

3874240 is an abundant number, since it is smaller than the sum of its proper divisors (5352056).

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

3874240 is a wasteful number, since it uses less digits than its factorization.

3874240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12124 (or 12114 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 3874240 is about 1968.3089188438. The cubic root of 3874240 is about 157.0587633491.

It can be divided in two parts, 38742 and 40, that multiplied together give a triangular number (1549680 = T₁₇₆₀).

The spelling of 3874240 in words is "three million, eight hundred seventy-four thousand, two hundred forty".