6440152 has 8 divisors (see below), whose sum is σ = 12075300. Its totient is φ = 3220072.

The previous prime is 6440149. The next prime is 6440171. The reversal of 6440152 is 2510446.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402502 + ... + 402517.

Almost surely, 2^6440152 is an apocalyptic number.

It is an amenable number.

6440152 is a deficient number, since it is larger than the sum of its proper divisors (5635148).

6440152 is a wasteful number, since it uses less digits than its factorization.

6440152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805025 (or 805021 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 6440152 is about 2537.7454561086. The cubic root of 6440152 is about 186.0510131014.

Adding to 6440152 its reverse (2510446), we get a palindrome (8950598).

The spelling of 6440152 in words is "six million, four hundred forty thousand, one hundred fifty-two".