64452120 has 64 divisors (see below), whose sum is σ = 194400000. Its totient is φ = 17094528.

The previous prime is 64452103. The next prime is 64452121. The reversal of 64452120 is 2125446.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64452121) 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, 22531 + ... + 25229.

It is an arithmetic number, because the mean of its divisors is an integer number (3037500).

Almost surely, 2^64452120 is an apocalyptic number.

64452120 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 64452120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97200000).

64452120 is an abundant number, since it is smaller than the sum of its proper divisors (129947880).

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

64452120 is a wasteful number, since it uses less digits than its factorization.

64452120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 64452120 is about 8028.2077701066. The cubic root of 64452120 is about 400.9397073133.

Adding to 64452120 its reverse (2125446), we get a palindrome (66577566).

The spelling of 64452120 in words is "sixty-four million, four hundred fifty-two thousand, one hundred twenty".