3949456 has 40 divisors (see below), whose sum is σ = 8838720. Its totient is φ = 1674624.

The previous prime is 3949453. The next prime is 3949459. The reversal of 3949456 is 6549493.

It is an interprime number because it is at equal distance from previous prime (3949453) and next prime (3949459).

It is a pancake number, because a pancake can be divided into 3949456 parts by 2810 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (3949453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19950 + ... + 20146.

It is an arithmetic number, because the mean of its divisors is an integer number (220968).

Almost surely, 2^3949456 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 3949456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4419360).

3949456 is an abundant number, since it is smaller than the sum of its proper divisors (4889264).

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

3949456 is a wasteful number, since it uses less digits than its factorization.

3949456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 385 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 3949456 is about 1987.3238286701. The cubic root of 3949456 is about 158.0686557366.

The spelling of 3949456 in words is "three million, nine hundred forty-nine thousand, four hundred fifty-six".