64481450 has 24 divisors (see below), whose sum is σ = 130839840. Its totient is φ = 23447600.

The previous prime is 64481447. The next prime is 64481477. The reversal of 64481450 is 5418446.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58070 + ... + 59169.

It is an arithmetic number, because the mean of its divisors is an integer number (5451660).

Almost surely, 2^64481450 is an apocalyptic number.

64481450 is an abundant number, since it is smaller than the sum of its proper divisors (66358390).

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

64481450 is a wasteful number, since it uses less digits than its factorization.

64481450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117262 (or 117257 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 64481450 is about 8030.0342465023. The cubic root of 64481450 is about 401.0005161653. Note that the first 3 decimals are identical.

Adding to 64481450 its reverse (5418446), we get a palindrome (69899896).

The spelling of 64481450 in words is "sixty-four million, four hundred eighty-one thousand, four hundred fifty".