3945474 has 36 divisors (see below), whose sum is σ = 9263826. Its totient is φ = 1213056.

The previous prime is 3945467. The next prime is 3945527. The reversal of 3945474 is 4745493.

It can be written as a sum of positive squares in 3 ways, for example, as 3294225 + 651249 = 1815^2 + 807^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2394 + ... + 3690.

Almost surely, 2^3945474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3945474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4631913).

3945474 is an abundant number, since it is smaller than the sum of its proper divisors (5318352).

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

3945474 is a wasteful number, since it uses less digits than its factorization.

3945474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1315 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3945474 is about 1986.3217262065. The cubic root of 3945474 is about 158.0155141525.

The spelling of 3945474 in words is "three million, nine hundred forty-five thousand, four hundred seventy-four".