6403436 has 12 divisors (see below), whose sum is σ = 12068112. Its totient is φ = 2955408.

The previous prime is 6403433. The next prime is 6403451. The reversal of 6403436 is 6343046.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (6403433) 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, 61520 + ... + 61623.

It is an arithmetic number, because the mean of its divisors is an integer number (1005676).

Almost surely, 2^6403436 is an apocalyptic number.

It is an amenable number.

6403436 is a deficient number, since it is larger than the sum of its proper divisors (5664676).

6403436 is a wasteful number, since it uses less digits than its factorization.

6403436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123160 (or 123158 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 6403436 is about 2530.5011361388. The cubic root of 6403436 is about 185.6967734403.

The spelling of 6403436 in words is "six million, four hundred three thousand, four hundred thirty-six".