6453944 has 16 divisors (see below), whose sum is σ = 13830000. Its totient is φ = 2765952.

The previous prime is 6453943. The next prime is 6453949. The reversal of 6453944 is 4493546.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6453943) 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, 57569 + ... + 57680.

It is an arithmetic number, because the mean of its divisors is an integer number (864375).

Almost surely, 2^6453944 is an apocalyptic number.

It is an amenable number.

6453944 is an abundant number, since it is smaller than the sum of its proper divisors (7376056).

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

6453944 is a wasteful number, since it uses less digits than its factorization.

6453944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115262 (or 115258 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 6453944 is about 2540.4613754198. The cubic root of 6453944 is about 186.1837318108.

The spelling of 6453944 in words is "six million, four hundred fifty-three thousand, nine hundred forty-four".