64413630 has 80 divisors (see below), whose sum is σ = 174431664. Its totient is φ = 17055360.

The previous prime is 64413581. The next prime is 64413673. The reversal of 64413630 is 3631446.

64413630 is a `hidden beast` number, since 644 + 13 + 6 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 64413594 and 64413603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 227469 + ... + 227751.

Almost surely, 2^64413630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64413630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87215832).

64413630 is an abundant number, since it is smaller than the sum of its proper divisors (110018034).

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

64413630 is a wasteful number, since it uses less digits than its factorization.

64413630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 64413630 is about 8025.8102394712. The cubic root of 64413630 is about 400.8598793608.

The spelling of 64413630 in words is "sixty-four million, four hundred thirteen thousand, six hundred thirty".