3953740 has 48 divisors (see below), whose sum is σ = 9805824. Its totient is φ = 1310400.

The previous prime is 3953717. The next prime is 3953749. The reversal of 3953740 is 473593.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (3953749) 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, 3885 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (204288).

Almost surely, 2^3953740 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 3953740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4902912).

3953740 is an abundant number, since it is smaller than the sum of its proper divisors (5852084).

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

3953740 is a wasteful number, since it uses less digits than its factorization.

3953740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 3953740 is about 1988.4013679335. The cubic root of 3953740 is about 158.1257877759.

The spelling of 3953740 in words is "three million, nine hundred fifty-three thousand, seven hundred forty".