64311450 has 96 divisors (see below), whose sum is σ = 190273536. Its totient is φ = 14055360.

The previous prime is 64311433. The next prime is 64311461. The reversal of 64311450 is 5411346.

64311450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64311450² = 8271925202205000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64311450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22819 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (1982016).

Almost surely, 2^64311450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64311450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95136768).

64311450 is an abundant number, since it is smaller than the sum of its proper divisors (125962086).

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

64311450 is a wasteful number, since it uses less digits than its factorization.

64311450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 64311450 is about 8019.4420005384. The cubic root of 64311450 is about 400.6478044737.

Adding to 64311450 its reverse (5411346), we get a palindrome (69722796).

The spelling of 64311450 in words is "sixty-four million, three hundred eleven thousand, four hundred fifty".