6433385406 has 64 divisors (see below), whose sum is σ = 14852554752. Its totient is φ = 1819716192.

The previous prime is 6433385377. The next prime is 6433385437. The reversal of 6433385406 is 6045833346.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3236745 + ... + 3238731.

It is an arithmetic number, because the mean of its divisors is an integer number (232071168).

Almost surely, 2^6433385406 is an apocalyptic number.

6433385406 is an abundant number, since it is smaller than the sum of its proper divisors (8419169346).

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

6433385406 is a wasteful number, since it uses less digits than its factorization.

6433385406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733.

The product of its (nonzero) digits is 622080, while the sum is 42.

The square root of 6433385406 is about 80208.3873793757. The cubic root of 6433385406 is about 1859.8582971016.

The spelling of 6433385406 in words is "six billion, four hundred thirty-three million, three hundred eighty-five thousand, four hundred six".