6406450 has 24 divisors (see below), whose sum is σ = 12618612. Its totient is φ = 2411520.

The previous prime is 6406447. The next prime is 6406457. The reversal of 6406450 is 546046.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3017169 + 3389281 = 1737^2 + 1841^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6406457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2919 + ... + 4618.

Almost surely, 2^6406450 is an apocalyptic number.

6406450 is a deficient number, since it is larger than the sum of its proper divisors (6212162).

6406450 is a wasteful number, since it uses less digits than its factorization.

6406450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566 (or 7561 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6406450 is about 2531.0966002901. The cubic root of 6406450 is about 185.7259037533.

The spelling of 6406450 in words is "six million, four hundred six thousand, four hundred fifty".