64194480 has 240 divisors, whose sum is σ = 252555264. Its totient is φ = 14307840.

The previous prime is 64194469. The next prime is 64194491. The reversal of 64194480 is 8449146.

It is a happy number.

64194480 is a `hidden beast` number, since 641 + 9 + 4 + 4 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (64194469) and next prime (64194491).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236745 + ... + 237015.

Almost surely, 2^64194480 is an apocalyptic number.

64194480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64194480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126277632).

64194480 is an abundant number, since it is smaller than the sum of its proper divisors (188360784).

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

64194480 is a wasteful number, since it uses less digits than its factorization.

64194480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 64194480 is about 8012.1457800018. The cubic root of 64194480 is about 400.4047569580.

The spelling of 64194480 in words is "sixty-four million, one hundred ninety-four thousand, four hundred eighty".