64190412 has 144 divisors (see below), whose sum is σ = 196359072. Its totient is φ = 17418240.

The previous prime is 64190411. The next prime is 64190431. The reversal of 64190412 is 21409146.

64190412 is a `hidden beast` number, since 64 + 190 + 412 = 666.

It is not an unprimeable number, because it can be changed into a prime (64190411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190308 + ... + 190644.

Almost surely, 2^64190412 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 64190412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98179536).

64190412 is an abundant number, since it is smaller than the sum of its proper divisors (132168660).

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

64190412 is a wasteful number, since it uses less digits than its factorization.

64190412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 64190412 is about 8011.8919114027. The cubic root of 64190412 is about 400.3962989049.

Adding to 64190412 its reverse (21409146), we get a palindrome (85599558).

The spelling of 64190412 in words is "sixty-four million, one hundred ninety thousand, four hundred twelve".