3954440 has 64 divisors (see below), whose sum is σ = 10540800. Its totient is φ = 1306368.

The previous prime is 3954437. The next prime is 3954443. The reversal of 3954440 is 444593.

It is an interprime number because it is at equal distance from previous prime (3954437) and next prime (3954443).

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954443) 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, 7877 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (164700).

Almost surely, 2^3954440 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 3954440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5270400).

3954440 is an abundant number, since it is smaller than the sum of its proper divisors (6586360).

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

3954440 is a wasteful number, since it uses less digits than its factorization.

3954440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3954440 is about 1988.5773809435. The cubic root of 3954440 is about 158.1351191533.

The spelling of 3954440 in words is "three million, nine hundred fifty-four thousand, four hundred forty".