4064440 has 16 divisors (see below), whose sum is σ = 9145080. Its totient is φ = 1625760.

The previous prime is 4064407. The next prime is 4064447. The reversal of 4064440 is 444604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4064447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50766 + ... + 50845.

Almost surely, 2^4064440 is an apocalyptic number.

4064440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4064440 is an abundant number, since it is smaller than the sum of its proper divisors (5080640).

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

4064440 is a wasteful number, since it uses less digits than its factorization.

4064440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101622 (or 101618 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4064440 is about 2016.0456344041. The cubic root of 4064440 is about 159.5880025236.

The spelling of 4064440 in words is "four million, sixty-four thousand, four hundred forty".