64481196 has 48 divisors (see below), whose sum is σ = 163586304. Its totient is φ = 19649856.

The previous prime is 64481191. The next prime is 64481251. The reversal of 64481196 is 69118446.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (64481191) 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, 14761 + ... + 18623.

It is an arithmetic number, because the mean of its divisors is an integer number (3408048).

Almost surely, 2^64481196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64481196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81793152).

64481196 is an abundant number, since it is smaller than the sum of its proper divisors (99105108).

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

64481196 is a wasteful number, since it uses less digits than its factorization.

64481196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990 (or 3988 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 64481196 is about 8030.0184308630. The cubic root of 64481196 is about 400.9999896352. Note that the first 4 decimals are identical.

The spelling of 64481196 in words is "sixty-four million, four hundred eighty-one thousand, one hundred ninety-six".