64023630 has 64 divisors (see below), whose sum is σ = 169019136. Its totient is φ = 15392000.

The previous prime is 64023623. The next prime is 64023647. The reversal of 64023630 is 3632046.

It is a self number, because there is not a number n which added to its sum of digits gives 64023630.

It is a congruent number.

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, 42490 + ... + 43970.

It is an arithmetic number, because the mean of its divisors is an integer number (2640924).

Almost surely, 2^64023630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64023630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84509568).

64023630 is an abundant number, since it is smaller than the sum of its proper divisors (104995506).

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

64023630 is a wasteful number, since it uses less digits than its factorization.

64023630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 64023630 is about 8001.4767387027. The cubic root of 64023630 is about 400.0492231091.

Adding to 64023630 its reverse (3632046), we get a palindrome (67655676).

The spelling of 64023630 in words is "sixty-four million, twenty-three thousand, six hundred thirty".