64019000 has 32 divisors (see below), whose sum is σ = 149806800. Its totient is φ = 25607200.

The previous prime is 64018973. The next prime is 64019003. The reversal of 64019000 is 91046.

64019000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64019000² = 8196864722000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64019003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31010 + ... + 33009.

Almost surely, 2^64019000 is an apocalyptic number.

It is an amenable number.

64019000 is an abundant number, since it is smaller than the sum of its proper divisors (85787800).

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

64019000 is a wasteful number, since it uses less digits than its factorization.

64019000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64040 (or 64026 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 64019000 is about 8001.1874118783. The cubic root of 64019000 is about 400.0395794169.

The spelling of 64019000 in words is "sixty-four million, nineteen thousand".