64024140 has 24 divisors (see below), whose sum is σ = 179267760. Its totient is φ = 17073088.

The previous prime is 64024133. The next prime is 64024187. The reversal of 64024140 is 4142046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533475 + ... + 533594.

It is an arithmetic number, because the mean of its divisors is an integer number (7469490).

Almost surely, 2^64024140 is an apocalyptic number.

64024140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64024140 is an abundant number, since it is smaller than the sum of its proper divisors (115243620).

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

64024140 is a wasteful number, since it uses less digits than its factorization.

64024140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067081 (or 1067079 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 64024140 is about 8001.5086077564. The cubic root of 64024140 is about 400.0502853449.

Adding to 64024140 its reverse (4142046), we get a palindrome (68166186).

The spelling of 64024140 in words is "sixty-four million, twenty-four thousand, one hundred forty".