64583420 has 48 divisors (see below), whose sum is σ = 151417728. Its totient is φ = 22935360.

The previous prime is 64583401. The next prime is 64583429. The reversal of 64583420 is 2438546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64583429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6047 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (3154536).

Almost surely, 2^64583420 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 64583420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75708864).

64583420 is an abundant number, since it is smaller than the sum of its proper divisors (86834308).

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

64583420 is a wasteful number, since it uses less digits than its factorization.

64583420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890 (or 6888 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 64583420 is about 8036.3810263078. The cubic root of 64583420 is about 401.2117835776.

The spelling of 64583420 in words is "sixty-four million, five hundred eighty-three thousand, four hundred twenty".