3926240 has 48 divisors (see below), whose sum is σ = 9471168. Its totient is φ = 1537536.

The previous prime is 3926233. The next prime is 3926249. The reversal of 3926240 is 426293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3926249) 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, 8249 + ... + 8711.

It is an arithmetic number, because the mean of its divisors is an integer number (197316).

Almost surely, 2^3926240 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 3926240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4735584).

3926240 is an abundant number, since it is smaller than the sum of its proper divisors (5544928).

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

3926240 is a wasteful number, since it uses less digits than its factorization.

3926240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3926240 is about 1981.4741986713. The cubic root of 3926240 is about 157.7583230364.

The spelling of 3926240 in words is "three million, nine hundred twenty-six thousand, two hundred forty".