64455406 has 32 divisors (see below), whose sum is σ = 102627360. Its totient is φ = 30326400.

The previous prime is 64455401. The next prime is 64455427. The reversal of 64455406 is 60455446.

It is a super-3 number, since 3×64455406³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64455401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491961 + ... + 492091.

It is an arithmetic number, because the mean of its divisors is an integer number (3207105).

Almost surely, 2^64455406 is an apocalyptic number.

64455406 is a deficient number, since it is larger than the sum of its proper divisors (38171954).

64455406 is a wasteful number, since it uses less digits than its factorization.

64455406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 64455406 is about 8028.4124208962. The cubic root of 64455406 is about 400.9465209784.

The spelling of 64455406 in words is "sixty-four million, four hundred fifty-five thousand, four hundred six".