3945732 has 48 divisors (see below), whose sum is σ = 10644480. Its totient is φ = 1114272.

The previous prime is 3945731. The next prime is 3945757. The reversal of 3945732 is 2375493.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3945693 and 3945702.

It is not an unprimeable number, because it can be changed into a prime (3945731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8769 + ... + 9207.

It is an arithmetic number, because the mean of its divisors is an integer number (221760).

Almost surely, 2^3945732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3945732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5322240).

3945732 is an abundant number, since it is smaller than the sum of its proper divisors (6698748).

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

3945732 is a wasteful number, since it uses less digits than its factorization.

3945732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 558 counting only the distinct ones).

The product of its digits is 22680, while the sum is 33.

The square root of 3945732 is about 1986.3866693069. The cubic root of 3945732 is about 158.0189583618.

The spelling of 3945732 in words is "three million, nine hundred forty-five thousand, seven hundred thirty-two".