64264620 has 96 divisors (see below), whose sum is σ = 209599488. Its totient is φ = 14406912.

The previous prime is 64264559. The next prime is 64264633. The reversal of 64264620 is 2646246.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20817 + ... + 23703.

It is an arithmetic number, because the mean of its divisors is an integer number (2183328).

Almost surely, 2^64264620 is an apocalyptic number.

64264620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64264620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104799744).

64264620 is an abundant number, since it is smaller than the sum of its proper divisors (145334868).

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

64264620 is a wasteful number, since it uses less digits than its factorization.

64264620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 64264620 is about 8016.5216896108. The cubic root of 64264620 is about 400.5505336009.

The spelling of 64264620 in words is "sixty-four million, two hundred sixty-four thousand, six hundred twenty".