64240828 has 12 divisors (see below), whose sum is σ = 113280552. Its totient is φ = 31874960.

The previous prime is 64240819. The next prime is 64240831. The reversal of 64240828 is 82804246.

It is a super-3 number, since 3×64240828³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64240793 and 64240802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60775 + ... + 61822.

It is an arithmetic number, because the mean of its divisors is an integer number (9440046).

Almost surely, 2^64240828 is an apocalyptic number.

It is an amenable number.

64240828 is a deficient number, since it is larger than the sum of its proper divisors (49039724).

64240828 is a wasteful number, since it uses less digits than its factorization.

64240828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122732 (or 122730 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 64240828 is about 8015.0376168799. The cubic root of 64240828 is about 400.5010969924.

The spelling of 64240828 in words is "sixty-four million, two hundred forty thousand, eight hundred twenty-eight".