64260828 has 18 divisors (see below), whose sum is σ = 162437184. Its totient is φ = 21420264.

The previous prime is 64260787. The next prime is 64260829. The reversal of 64260828 is 82806246.

64260828 is a `hidden beast` number, since 6 + 42 + 608 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) 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 (36), and also a Moran number because the ratio is a prime number: 1785023 = 64260828 / (6 + 4 + 2 + 6 + 0 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 64260792 and 64260801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64260829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 892476 + ... + 892547.

It is an arithmetic number, because the mean of its divisors is an integer number (9024288).

Almost surely, 2^64260828 is an apocalyptic number.

It is an amenable number.

64260828 is an abundant number, since it is smaller than the sum of its proper divisors (98176356).

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

64260828 is a wasteful number, since it uses less digits than its factorization.

64260828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785033 (or 1785028 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 64260828 is about 8016.2851745681. The cubic root of 64260828 is about 400.5426551472.

The spelling of 64260828 in words is "sixty-four million, two hundred sixty thousand, eight hundred twenty-eight".